CVE-2015-8660

highpriority · attend · 45EPSS 0.222 · 98 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

7 exploits · functional

Likely / severe?

22.2% (98th) EPSS

CVSS 7.2 · high

Is it mine?

34 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · redhat_csaf

EPSS · scored 2026-10-27

The ovl_setattr function in fs/overlayfs/inode.c in the Linux kernel through 4.3.3 attempts to merge distinct setattr operations, which allows local users to bypass intended access restrictions and modify the attributes of arbitrary overlay files via a crafted application.

remediations

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

A vendor fix is available.

Fixedkernel-rt-0:3.10.0-327.28.2.rt56.234.el7_2.src as a component of Red Hat Enterprise Linux Realtime (v. 7)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-2016:1541
Fixedkernel-rt-0:3.10.0-327.28.2.rt56.234.el7_2.src as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)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-2016:1541
Fixedkernel-rt-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-debug-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)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-2016:1541
Fixedkernel-rt-debug-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-debug-debuginfo-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)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-2016:1541
Fixedkernel-rt-debug-debuginfo-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-debug-devel-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)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-2016:1541
Fixedkernel-rt-debug-devel-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-debug-kvm-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-debug-kvm-debuginfo-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-debuginfo-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)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-2016:1541
Fixedkernel-rt-debuginfo-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-debuginfo-common-x86_64-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)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-2016:1541
Fixedkernel-rt-debuginfo-common-x86_64-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-devel-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)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-2016:1541
Fixedkernel-rt-devel-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-doc-0:3.10.0-327.28.2.rt56.234.el7_2.noarch as a component of Red Hat Enterprise Linux Realtime (v. 7)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-2016:1541
Fixedkernel-rt-doc-0:3.10.0-327.28.2.rt56.234.el7_2.noarch as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-kvm-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-kvm-debuginfo-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-trace-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)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-2016:1541
Fixedkernel-rt-trace-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-trace-debuginfo-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)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-2016:1541
Fixedkernel-rt-trace-debuginfo-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-trace-devel-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)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-2016:1541
Fixedkernel-rt-trace-devel-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-trace-kvm-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541
Fixedkernel-rt-trace-kvm-debuginfo-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)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-2016:1541

cvss

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

7.2

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–7.2

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 10

v3.16.7mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 0.8 · impact 5.9

v2.06mediumAV:L/AC:H/Au:S/C:C/I:C/A:Csecondary · Red Hat Product Security US

v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:Fsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-264USprimaryCWE-732US

exploits (7)

Public proof-of-concept and weaponised exploit code.

EDB-39166Linux Kernel 4.3.3 (Ubuntu 14.04/15.10) - 'overlayfs' Local Privilege Escalation (1)functional · exploit_db
EDB-40688Linux Kernel (Ubuntu / Fedora / RedHat) - 'Overlayfs' Local Privilege Escalation (Metasploit)functional · exploit_db
exploit/linux/local/overlayfs_priv_escOverlayfs Privilege Escalationfunctional · metasploit
EDB-39230Linux Kernel 4.3.3 - 'overlayfs' Local Privilege Escalation (2)PoC · exploit_db
carradolly/CVE-2015-8660carradolly/CVE-2015-8660PoC · poc_in_github
nhamle2/CVE-2015-8660nhamle2/CVE-2015-8660PoC · poc_in_github

affected products (34)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
linux linux kernel3.18 → 3.18.31nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux kernel3.19 → 4.1.22nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux kernel4.2 → 4.4nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
kernel-rt-0:3.10.0-327.28.2.rt56.234.el7_2.src as a component of Red Hat Enterprise Linux Realtime (v. 7)all versionsfixedredhat_csafUS
kernel-rt-0:3.10.0-327.28.2.rt56.234.el7_2.src as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)all versionsfixedredhat_csafUS
kernel-rt-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)all versionsfixedredhat_csafUS
kernel-rt-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)all versionsfixedredhat_csafUS
kernel-rt-debug-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)all versionsfixedredhat_csafUS
kernel-rt-debug-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)all versionsfixedredhat_csafUS
kernel-rt-debug-debuginfo-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)all versionsfixedredhat_csafUS
kernel-rt-debug-debuginfo-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)all versionsfixedredhat_csafUS
kernel-rt-debug-devel-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)all versionsfixedredhat_csafUS
kernel-rt-debug-devel-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)all versionsfixedredhat_csafUS
kernel-rt-debug-kvm-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)all versionsfixedredhat_csafUS
kernel-rt-debug-kvm-debuginfo-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)all versionsfixedredhat_csafUS
kernel-rt-debuginfo-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)all versionsfixedredhat_csafUS
kernel-rt-debuginfo-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)all versionsfixedredhat_csafUS
kernel-rt-debuginfo-common-x86_64-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux Realtime (v. 7)all versionsfixedredhat_csafUS
kernel-rt-debuginfo-common-x86_64-0:3.10.0-327.28.2.rt56.234.el7_2.x86_64 as a component of Red Hat Enterprise Linux for Real Time for NFV (v. 7)all versionsfixedredhat_csafUS

showing 20 of 34

advisories (1)

Vendor and ecosystem advisories describing this.

RHSA-2016:1541Red Hat Security Advisory: kernel-rt security and bug fix update2016-08-02csaf · redhat_csafUS
An update for kernel-rt 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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd redhat_csaf NVD CVE.org MITRE

published 2015-12-28modified 2026-06-17

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references (74)

External citations — patches, advisories, analysis.

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