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CVE-2015-7872

12
FAUCET Score

CVE-2015-7872 is a denial-of-service vulnerability affecting the Linux kernel through version 4.2.6, specifically within the key_gc_unused_keys function. This low-severity flaw (CVSS 2.1) can be triggered locally by an unauthenticated attacker using crafted keyctl commands, leading to an OOPS. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.2.6CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

AV:L/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.51%
Probability of exploitation in next 30 days
EPSS Percentile
40.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0051 is in the 76th percentile among its peer group of 2,096 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.6 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-573.12.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-327.10.1.rt56.211.el7_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-327.10.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-1:3.10.0-327.rt56.171.el6rt
View patch
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2015-7872Important

kernel: Keyrings crash triggerable by unprivileged user

Oct 12, 2015

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Vendor Advisory
lists.opensuse.org / opensuse-security-announce/2015-11/msg00035.html
lists.opensuse.org / opensuse-security-announce/2015-12/msg00005.html
lists.opensuse.org / opensuse-security-announce/2015-12/msg00018.html
lists.opensuse.org / opensuse-security-announce/2015-12/msg00026.html
lists.opensuse.org / opensuse-security-announce/2015-12/msg00031.html
lists.opensuse.org / opensuse-security-announce/2016-02/msg00007.html
lists.opensuse.org / opensuse-security-announce/2016-02/msg00009.html
lists.opensuse.org / opensuse-security-announce/2016-02/msg00013.html
lists.opensuse.org / opensuse-security-announce/2016-02/msg00017.html
lists.opensuse.org / opensuse-security-announce/2016-02/msg00018.html
lists.opensuse.org / opensuse-security-announce/2016-02/msg00019.html
lists.opensuse.org / opensuse-security-announce/2016-02/msg00020.html
lists.opensuse.org / opensuse-security-announce/2016-02/msg00021.html
lists.opensuse.org / opensuse-security-announce/2016-02/msg00022.html
lists.opensuse.org / opensuse-security-announce/2016-02/msg00034.html
lists.opensuse.org / opensuse-security-announce/2016-04/msg00015.html
lists.opensuse.org / opensuse-security-announce/2016-08/msg00038.html
marc.info
rhn.redhat.com / errata/RHSA-2015-2636.html
rhn.redhat.com / errata/RHSA-2016-0185.html
rhn.redhat.com / errata/RHSA-2016-0212.html
rhn.redhat.com / errata/RHSA-2016-0224.html
bugzilla.redhat.com / show_bug.cgi
bugzilla.redhat.com / show_bug.cgi
github.com / torvalds/linux/commit/ce1fad2740c648a4340f6f6c391a8a83769d2e8c
Vendor Advisory
github.com / torvalds/linux/commit/f05819df10d7b09f6d1eb6f8534a8f68e5a4fe61
h20566.www2.hpe.com / portal/site/hpsc/public/kb/docDisplay
source.android.com / security/bulletin/2016-12-01.html
debian.org / security/2015/dsa-3396
openwall.com / lists/oss-security/2015/10/20/6
oracle.com / technetwork/topics/security/linuxbulletinjan2016-2867209.html
oracle.com / technetwork/topics/security/linuxbulletinoct2015-2719645.html
securityfocus.com / bid/77544
securitytracker.com / id/1034472
ubuntu.com / usn/USN-2823-1
ubuntu.com / usn/USN-2824-1
ubuntu.com / usn/USN-2826-1
ubuntu.com / usn/USN-2829-1
ubuntu.com / usn/USN-2829-2
ubuntu.com / usn/USN-2840-1
ubuntu.com / usn/USN-2840-2
ubuntu.com / usn/USN-2843-1
ubuntu.com / usn/USN-2843-2
ubuntu.com / usn/USN-2843-3