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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2023-5156	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2240541	Issue Tracking Patch
https://sourceware.org/bugzilla/show_bug.cgi?id=30884	Issue Tracking Patch
https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=ec6b95c3303c700eb89eebeda2d7264cc184a796	Mailing List Patch
http://www.openwall.com/lists/oss-security/2023/10/03/4
http://www.openwall.com/lists/oss-security/2023/10/03/5
http://www.openwall.com/lists/oss-security/2023/10/03/6
http://www.openwall.com/lists/oss-security/2023/10/03/8
https://access.redhat.com/security/cve/CVE-2023-5156	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2240541	Issue Tracking Patch
https://security.gentoo.org/glsa/202402-01
https://sourceware.org/bugzilla/show_bug.cgi?id=30884	Issue Tracking Patch
https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=ec6b95c3303c700eb89eebeda2d7264cc184a796	Mailing List Patch
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://cert-portal.siemens.com/productcert/html/ssa-831302.html

Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*

History

14 Oct 2026, 22:17

Type	Values Removed	Values Added
References		() https://cert-portal.siemens.com/productcert/html/ssa-398330.html - () https://cert-portal.siemens.com/productcert/html/ssa-831302.html -

Information

Published : 2023-09-25 16:15

Updated : 2026-10-14 22:17

NVD link : CVE-2023-5156

Mitre link : CVE-2023-5156

CVE.ORG link : CVE-2023-5156

JSON object : View

Products Affected

gnu

glibc

redhat

enterprise_linux

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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