Use After Free Affecting kernel-uek-tools-libs-devel package, versions <0:4.14.35-2047.505.4.el7uek


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.09% (38th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Use After Free vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-ORACLE7-KERNELUEKTOOLSLIBSDEVEL-2600006
  • published10 Apr 2022
  • disclosed14 May 2021

Introduced: 14 May 2021

CVE-2021-33033  (opens in a new tab)
CWE-416  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Oracle:7 kernel-uek-tools-libs-devel to version 0:4.14.35-2047.505.4.el7uek or higher.
This issue was patched in ELSA-2021-9349.

NVD Description

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

The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value.

CVSS Scores

version 3.1