NULL Pointer Dereference Affecting glibc-langpack-lo package, versions <0:2.26-57.amzn2


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.88% (83rd 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 NULL Pointer Dereference vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-AMZN2-GLIBCLANGPACKLO-6098787
  • published5 Dec 2023
  • disclosed12 Aug 2021

Introduced: 12 Aug 2021

CVE-2021-38604  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 glibc-langpack-lo to version 0:2.26-57.amzn2 or higher.
This issue was patched in ALAS2-2023-2371.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc-langpack-lo package and not the glibc-langpack-lo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

In librt in the GNU C Library (aka glibc) through 2.34, sysdeps/unix/sysv/linux/mq_notify.c mishandles certain NOTIFY_REMOVED data, leading to a NULL pointer dereference. NOTE: this vulnerability was introduced as a side effect of the CVE-2021-33574 fix.

CVSS Scores

version 3.1