Use After Free Affecting nss_db-debuginfo package, versions <0:2.34-52.amzn2023.0.6


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
2.22% (83rd percentile)

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  • Snyk IDSNYK-AMZN2023-NSSDBDEBUGINFO-5928261
  • 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 nss_db-debuginfo 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 nss_db-debuginfo package and not the nss_db-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A flaw has been identified 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 Base Scores

version 3.1