Use After Free Affecting glibc package, versions <2.36-3


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.66% (74th percentile)

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  • Snyk IDSNYK-ECHOLATEST-GLIBC-18610873
  • published11 Aug 2026
  • 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 Echo:latest glibc to version 2.36-3 or higher.

NVD Description

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