Use After Free Affecting python-perf package, versions <0:4.14.35-2025.402.2.1.el7uek


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
2.14% (80th percentile)

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  • Snyk IDSNYK-ORACLE7-PYTHONPERF-2578016
  • published10 Apr 2022
  • disclosed8 Dec 2019

Introduced: 8 Dec 2019

CVE-2019-19448  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:7 python-perf to version 0:4.14.35-2025.402.2.1.el7uek or higher.
This issue was patched in ELSA-2020-5913.

NVD Description

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

In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in try_merge_free_space in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the pointer to a right data structure.

CVSS Base Scores

version 3.1