Use After Free Affecting kernel-uek-container-debug package, versions <0:5.4.17-2102.201.3.el7


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (15th 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-KERNELUEKCONTAINERDEBUG-2598695
  • published10 Apr 2022
  • disclosed26 Mar 2021

Introduced: 26 Mar 2021

CVE-2021-29266  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-container-debug to version 0:5.4.17-2102.201.3.el7 or higher.
This issue was patched in ELSA-2021-9221.

NVD Description

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

An issue was discovered in the Linux kernel before 5.11.9. drivers/vhost/vdpa.c has a use-after-free because v->config_ctx has an invalid value upon re-opening a character device, aka CID-f6bbf0010ba0.

CVSS Scores

version 3.1