CVE-2020-28915

mediumpriority · track · 23EPSS 0.004 · 32 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.38% (32nd) EPSS
CVSS 6.1 · medium
Is it mine?
50 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A buffer over-read (at the framebuffer layer) in the fbcon code in the Linux kernel before 5.8.15 could be used by local attackers to read kernel memory, aka CID-6735b4632def.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedkernel-rt-0:4.18.0-372.13.1.rt7.170.el8_6.src as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-0:4.18.0-372.13.1.rt7.170.el8_6.src as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-core-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-core-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debug-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debug-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debug-core-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debug-core-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debug-debuginfo-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debug-debuginfo-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debug-devel-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debug-devel-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debug-kvm-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debug-modules-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debug-modules-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debug-modules-extra-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debug-modules-extra-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debuginfo-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debuginfo-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debuginfo-common-x86_64-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-debuginfo-common-x86_64-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-devel-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-devel-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-kvm-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-modules-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-modules-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-modules-extra-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Fixedkernel-rt-modules-extra-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.

    https://access.redhat.com/errata/RHSA-2022:5344
  • Workaroundkernel-rt-0:4.18.0-372.13.1.rt7.170.el8_6.src as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-0:4.18.0-372.13.1.rt7.170.el8_6.src as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-core-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-core-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debug-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debug-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debug-core-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debug-core-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debug-debuginfo-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debug-debuginfo-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debug-devel-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debug-devel-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debug-kvm-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debug-modules-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debug-modules-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debug-modules-extra-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debug-modules-extra-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debuginfo-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debuginfo-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debuginfo-common-x86_64-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-debuginfo-common-x86_64-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-devel-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-devel-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-kvm-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-modules-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-modules-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-modules-extra-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux NFV (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

  • Workaroundkernel-rt-modules-extra-0:4.18.0-372.13.1.rt7.170.el8_6.x86_64 as a component of Red Hat Enterprise Linux RT (v. 8)redhat_csaf

    Add 'nomodeset' option as kernel boot parameter to disable frame buffering (edit /etc/default/grub, and run 'grub2-mkconfig -o /boot/grub2/grub.cfg' and reboot). ~~~ # cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-147.el8.x86_64 root=/dev/mapper/rhel_rhel8u2--1-root ro crashkernel=auto resume=/dev/mapper/rhel_rhel8u2--1-swap rd.lvm.lv=rhel_rhel8u2-1/root rd.lvm.lv=rhel_rhel8u2-1/swap nomodeset # ls -l /dev/fb* ls: cannot access '/dev/fb*': No such file or directory ~~~

02

cvss

Technical severity, 0–10. One row per scoring source.

6.1
010

base score 0–10 · higher = more severe · hover a vector to decode

v2.06.1mediumAV:L/AC:L/Au:N/C:P/I:P/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 8.5
v3.15.8mediumCVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:Hprimary · NVD / NIST USexploitability 0.3 · impact 5.5
v3.15.8mediumAV:P/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.15.3mediumCVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.15.8mediumCVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:Hsecondary · Red Hat Product Security US
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USprimaryCWE-125USCWE-125US
04

affected products (50)

Products and version ranges known to be affected.

showing 20 of 50
05

advisories (2)

Vendor and ecosystem advisories describing this.

  • RHSA-2022:5344Red Hat Security Advisory: kernel-rt security and bug fix update2022-06-28csaf · redhat_csafUS

    An update for kernel-rt is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

  • WID-SEC-W-2022-0493Linux Kernel: Schwachstelle ermöglicht Offenlegung von InformationenDeutsch2020-11-17csaf · cert_bundDE

    Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um Informationen offenzulegen.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundnvdredhat_csafNVDCVE.orgMITRE
published 2020-11-18modified 2026-06-17
09

references (41)

External citations — patches, advisories, analysis.

scry

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