Use After Free Affecting python-perf package, versions <0:5.4.17-2011.1.2.el7uek


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
4.15% (90th percentile)

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  • Snyk IDSNYK-ORACLE7-PYTHONPERF-2558853
  • published10 Apr 2022
  • disclosed12 Dec 2019

Introduced: 12 Dec 2019

CVE-2019-19768  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:7 python-perf to version 0:5.4.17-2011.1.2.el7uek or higher.
This issue was patched in ELSA-2020-5663.

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 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrace.c (which is used to fill out a blk_io_trace structure and place it in a per-cpu sub-buffer).

CVSS Base Scores

version 3.1