Red Hat Security Advisory: xterm security update
An update for xterm is now available for Red Hat Enterprise Linux 7. 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.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2021-27135US | critical9.8 | — | ||
xterm before Patch #366 allows remote attackers to execute arbitrary code or cause a denial of service (segmentation fault) via a crafted UTF-8 combining character sequence. | ||||
references
External citations — patches, advisories, analysis.
remediations (30)
- Fixedxterm-0:295-3.el7_9.1.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:0617 - Fixedxterm-0:295-3.el7_9.1.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:0617 - Fixedxterm-0:295-3.el7_9.1.s390x as a component of Red Hat Enterprise Linux Server (v. 7)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:0617 - Fixedxterm-0:295-3.el7_9.1.src as a component of Red Hat Enterprise Linux Client (v. 7)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:0617 - Fixedxterm-0:295-3.el7_9.1.src as a component of Red Hat Enterprise Linux Server (v. 7)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:0617 - Fixedxterm-0:295-3.el7_9.1.src as a component of Red Hat Enterprise Linux Workstation (v. 7)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:0617 - Fixedxterm-0:295-3.el7_9.1.x86_64 as a component of Red Hat Enterprise Linux Client (v. 7)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:0617 - Fixedxterm-0:295-3.el7_9.1.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:0617 - Fixedxterm-0:295-3.el7_9.1.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:0617 - Fixedxterm-debuginfo-0:295-3.el7_9.1.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:0617 - Fixedxterm-debuginfo-0:295-3.el7_9.1.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:0617 - Fixedxterm-debuginfo-0:295-3.el7_9.1.s390x as a component of Red Hat Enterprise Linux Server (v. 7)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:0617 - Fixedxterm-debuginfo-0:295-3.el7_9.1.x86_64 as a component of Red Hat Enterprise Linux Client (v. 7)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:0617 - Fixedxterm-debuginfo-0:295-3.el7_9.1.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:0617 - Fixedxterm-debuginfo-0:295-3.el7_9.1.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:0617 - Workaroundxterm-0:295-3.el7_9.1.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)
This vulnerability can be mitigated by disabling UTF-8 support in XTerm configuration. An entry such as "XTerm.vt100.utf8: false" in Xresources will disable UTF-8. This can be set as a system default in /etc/X11/Xresources, or per-user in ~/.Xresources. Note that this setting can still be overridden if xterm is invoked with the "-u8" command line option, so the mitigation may not protect all use cases.
- Workaroundxterm-0:295-3.el7_9.1.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)
This vulnerability can be mitigated by disabling UTF-8 support in XTerm configuration. An entry such as "XTerm.vt100.utf8: false" in Xresources will disable UTF-8. This can be set as a system default in /etc/X11/Xresources, or per-user in ~/.Xresources. Note that this setting can still be overridden if xterm is invoked with the "-u8" command line option, so the mitigation may not protect all use cases.
- Workaroundxterm-0:295-3.el7_9.1.s390x as a component of Red Hat Enterprise Linux Server (v. 7)
This vulnerability can be mitigated by disabling UTF-8 support in XTerm configuration. An entry such as "XTerm.vt100.utf8: false" in Xresources will disable UTF-8. This can be set as a system default in /etc/X11/Xresources, or per-user in ~/.Xresources. Note that this setting can still be overridden if xterm is invoked with the "-u8" command line option, so the mitigation may not protect all use cases.
- Workaroundxterm-0:295-3.el7_9.1.src as a component of Red Hat Enterprise Linux Client (v. 7)
This vulnerability can be mitigated by disabling UTF-8 support in XTerm configuration. An entry such as "XTerm.vt100.utf8: false" in Xresources will disable UTF-8. This can be set as a system default in /etc/X11/Xresources, or per-user in ~/.Xresources. Note that this setting can still be overridden if xterm is invoked with the "-u8" command line option, so the mitigation may not protect all use cases.
- Workaroundxterm-0:295-3.el7_9.1.src as a component of Red Hat Enterprise Linux Server (v. 7)
This vulnerability can be mitigated by disabling UTF-8 support in XTerm configuration. An entry such as "XTerm.vt100.utf8: false" in Xresources will disable UTF-8. This can be set as a system default in /etc/X11/Xresources, or per-user in ~/.Xresources. Note that this setting can still be overridden if xterm is invoked with the "-u8" command line option, so the mitigation may not protect all use cases.
- Workaroundxterm-0:295-3.el7_9.1.src as a component of Red Hat Enterprise Linux Workstation (v. 7)
This vulnerability can be mitigated by disabling UTF-8 support in XTerm configuration. An entry such as "XTerm.vt100.utf8: false" in Xresources will disable UTF-8. This can be set as a system default in /etc/X11/Xresources, or per-user in ~/.Xresources. Note that this setting can still be overridden if xterm is invoked with the "-u8" command line option, so the mitigation may not protect all use cases.
- Workaroundxterm-0:295-3.el7_9.1.x86_64 as a component of Red Hat Enterprise Linux Client (v. 7)
This vulnerability can be mitigated by disabling UTF-8 support in XTerm configuration. An entry such as "XTerm.vt100.utf8: false" in Xresources will disable UTF-8. This can be set as a system default in /etc/X11/Xresources, or per-user in ~/.Xresources. Note that this setting can still be overridden if xterm is invoked with the "-u8" command line option, so the mitigation may not protect all use cases.
- Workaroundxterm-0:295-3.el7_9.1.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)
This vulnerability can be mitigated by disabling UTF-8 support in XTerm configuration. An entry such as "XTerm.vt100.utf8: false" in Xresources will disable UTF-8. This can be set as a system default in /etc/X11/Xresources, or per-user in ~/.Xresources. Note that this setting can still be overridden if xterm is invoked with the "-u8" command line option, so the mitigation may not protect all use cases.
- Workaroundxterm-0:295-3.el7_9.1.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)
This vulnerability can be mitigated by disabling UTF-8 support in XTerm configuration. An entry such as "XTerm.vt100.utf8: false" in Xresources will disable UTF-8. This can be set as a system default in /etc/X11/Xresources, or per-user in ~/.Xresources. Note that this setting can still be overridden if xterm is invoked with the "-u8" command line option, so the mitigation may not protect all use cases.
- Workaroundxterm-debuginfo-0:295-3.el7_9.1.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)
This vulnerability can be mitigated by disabling UTF-8 support in XTerm configuration. An entry such as "XTerm.vt100.utf8: false" in Xresources will disable UTF-8. This can be set as a system default in /etc/X11/Xresources, or per-user in ~/.Xresources. Note that this setting can still be overridden if xterm is invoked with the "-u8" command line option, so the mitigation may not protect all use cases.
- Workaroundxterm-debuginfo-0:295-3.el7_9.1.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)
This vulnerability can be mitigated by disabling UTF-8 support in XTerm configuration. An entry such as "XTerm.vt100.utf8: false" in Xresources will disable UTF-8. This can be set as a system default in /etc/X11/Xresources, or per-user in ~/.Xresources. Note that this setting can still be overridden if xterm is invoked with the "-u8" command line option, so the mitigation may not protect all use cases.
- Workaroundxterm-debuginfo-0:295-3.el7_9.1.s390x as a component of Red Hat Enterprise Linux Server (v. 7)
This vulnerability can be mitigated by disabling UTF-8 support in XTerm configuration. An entry such as "XTerm.vt100.utf8: false" in Xresources will disable UTF-8. This can be set as a system default in /etc/X11/Xresources, or per-user in ~/.Xresources. Note that this setting can still be overridden if xterm is invoked with the "-u8" command line option, so the mitigation may not protect all use cases.
- Workaroundxterm-debuginfo-0:295-3.el7_9.1.x86_64 as a component of Red Hat Enterprise Linux Client (v. 7)
This vulnerability can be mitigated by disabling UTF-8 support in XTerm configuration. An entry such as "XTerm.vt100.utf8: false" in Xresources will disable UTF-8. This can be set as a system default in /etc/X11/Xresources, or per-user in ~/.Xresources. Note that this setting can still be overridden if xterm is invoked with the "-u8" command line option, so the mitigation may not protect all use cases.
- Workaroundxterm-debuginfo-0:295-3.el7_9.1.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)
This vulnerability can be mitigated by disabling UTF-8 support in XTerm configuration. An entry such as "XTerm.vt100.utf8: false" in Xresources will disable UTF-8. This can be set as a system default in /etc/X11/Xresources, or per-user in ~/.Xresources. Note that this setting can still be overridden if xterm is invoked with the "-u8" command line option, so the mitigation may not protect all use cases.
- Workaroundxterm-debuginfo-0:295-3.el7_9.1.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)
This vulnerability can be mitigated by disabling UTF-8 support in XTerm configuration. An entry such as "XTerm.vt100.utf8: false" in Xresources will disable UTF-8. This can be set as a system default in /etc/X11/Xresources, or per-user in ~/.Xresources. Note that this setting can still be overridden if xterm is invoked with the "-u8" command line option, so the mitigation may not protect all use cases.
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