Use After Free Affecting glibc-common package, versions <2:2.28-225.0.4.ksplice1.el8_8.6



    Attack Complexity High
    Availability High

    Threat Intelligence

    EPSS 0.1% (42nd percentile)
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5.9 medium
Expand this section
5.9 medium
Expand this section
Red Hat
5.9 medium

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  • published 11 Oct 2023
  • disclosed 12 Sep 2023

How to fix?

Upgrade Oracle:8 glibc-common to version 2:2.28-225.0.4.ksplice1.el8_8.6 or higher.
This issue was patched in ELSA-2023-12872.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc-common package and not the glibc-common package as distributed by Oracle. See How to fix? for Oracle:8 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.