Improper Locking Affecting kernel-abi-whitelists package, versions <0:3.10.0-693.17.1.el7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.09% (41st percentile)

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  • Snyk IDSNYK-RHEL7-KERNELABIWHITELISTS-4756457
  • published26 Jul 2021
  • disclosed9 Dec 2015

Introduced: 9 Dec 2015

CVE-2015-8539  (opens in a new tab)
CWE-667  (opens in a new tab)

How to fix?

Upgrade RHEL:7 kernel-abi-whitelists to version 0:3.10.0-693.17.1.el7 or higher.
This issue was patched in RHSA-2018:0151.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-abi-whitelists package and not the kernel-abi-whitelists package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

The KEYS subsystem in the Linux kernel before 4.4 allows local users to gain privileges or cause a denial of service (BUG) via crafted keyctl commands that negatively instantiate a key, related to security/keys/encrypted-keys/encrypted.c, security/keys/trusted.c, and security/keys/user_defined.c.

References

CVSS Scores

version 3.1