Use After Free Affecting kernel-doc package, versions <0:3.10.0-862.2.3.el7


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
2.15% (80th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELDOC-2525118
  • published10 Apr 2022
  • disclosed24 Nov 2017

Introduced: 24 Nov 2017

CVE-2017-16939  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-doc to version 0:3.10.0-862.2.3.el7 or higher.
This issue was patched in ELSA-2018-1318.

NVD Description

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

The XFRM dump policy implementation in net/xfrm/xfrm_user.c in the Linux kernel before 4.13.11 allows local users to gain privileges or cause a denial of service (use-after-free) via a crafted SO_RCVBUF setsockopt system call in conjunction with XFRM_MSG_GETPOLICY Netlink messages.

CVSS Base Scores

version 3.1