Use After Free Affecting glibc-langpack-ga package, versions <0:2.34-52.amzn2023.0.6


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.12% (48th percentile)

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  • Snyk IDSNYK-AMZN2023-GLIBCLANGPACKGA-5928293
  • published4 Oct 2023
  • disclosed12 Sept 2023

Introduced: 12 Sep 2023

CVE-2023-4813  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 glibc-langpack-ga to version 0:2.34-52.amzn2023.0.6 or higher.
This issue was patched in ALAS2023-2023-359.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc-langpack-ga package and not the glibc-langpack-ga package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A flaw was found in glibc. In an uncommon situation, the gaih_inet function may use memory that has been freed, resulting in an application crash. This issue is only exploitable when the getaddrinfo function is called and the hosts database in /etc/nsswitch.conf is configured with SUCCESS=continue or SUCCESS=merge.

CVSS Scores

version 3.1