Use After Free Affecting kernel-uek package, versions <0:4.1.12-124.46.3.el7uek


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.54% (78th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEK-2576503
  • published10 Apr 2022
  • disclosed8 Dec 2019

Introduced: 8 Dec 2019

CVE-2019-19447  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek to version 0:4.1.12-124.46.3.el7uek or higher.
This issue was patched in ELSA-2021-9002.

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.

In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c, related to dump_orphan_list in fs/ext4/super.c.

CVSS Scores

version 3.1