CVE-2023-5156

A flaw was found in the GNU C Library. A recent fix for CVE-2023-4806 introduced the potential for a memory leak, which may result in an application crash.

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

1.6% chance of exploitation in the next 30 days; higher than 75% of CVEs (scores of 2026-10-25)

CWE

CWE-401

Published

2023-09-25

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• gnu:glibc
• redhat:enterprise_linux

References

• https://access.redhat.com/security/cve/CVE-2023-5156
• https://bugzilla.redhat.com/show_bug.cgi?id=2240541
• https://sourceware.org/bugzilla/show_bug.cgi?id=30884
• https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=ec6b95c3303c700eb89eebeda2d7264cc184a796
• http://www.openwall.com/lists/oss-security/2023/10/03/4

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