Use After Free Affecting kernel-uek package, versions <0:4.14.35-1902.303.4.1.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.31% (70th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEK-2577458
  • published10 Apr 2022
  • disclosed12 Dec 2019

Introduced: 12 Dec 2019

CVE-2019-19767  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek to version 0:4.14.35-1902.303.4.1.el7uek or higher.
This issue was patched in ELSA-2020-5715.

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.

The Linux kernel before 5.4.2 mishandles ext4_expand_extra_isize, as demonstrated by use-after-free errors in __ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c, aka CID-4ea99936a163.

CVSS Scores

version 3.1