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Use After Free The advisory has been revoked - it doesn't affect any version of package nss_db  (opens in a new tab)

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EPSS
1.44% (70th percentile)

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  • Snyk IDSNYK-RHEL9-NSSDB-9913214
  • published1 May 2025
  • disclosed12 Sept 2023
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Introduced: 12 Sep 2023

CVE-2023-4806  (opens in a new tab)
CWE-416  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nss_db package and not the nss_db package as distributed by RHEL.

A flaw has been identified in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an application crash. This issue is only exploitable when a NSS module implements only the nss_gethostbyname2_r and nss_getcanonname_r hooks without implementing the nss*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL and AI_V4MAPPED as flags.

References