Use After Free Affecting kernel-uek package, versions <0:4.14.35-1818.4.5.el7uek


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.25% (64th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEK-2530377
  • published10 Apr 2022
  • disclosed19 Sept 2018

Introduced: 19 Sep 2018

CVE-2018-17182  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek to version 0:4.14.35-1818.4.5.el7uek or higher.
This issue was patched in ELSA-2018-4270.

NVD Description

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

An issue was discovered in the Linux kernel through 4.18.8. The vmacache_flush_all function in mm/vmacache.c mishandles sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations.

CVSS Scores

version 3.1