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Vulnerability record · CVE-2022-23219 · published 14 January 2022

CVE-2022-23219: Gnu glibc classic buffer overflow vulnerability

Gnu · Glibc

The deprecated compatibility function clnt_create in the sunrpc module of the GNU C Library (aka glibc) through 2.34 copies its hostname argument on the stack without validating its length, which may result in a buffer overflow, potentially resulting in a denial of service or (if an application is not built with a stack protector enabled) arbitrary code execution.

9.8 CVSS 3.1 Critical EPSS 4.3% · top 9.2% CWE-120 · Classic buffer overflow
9.8CVSS 3.1 base score, v2 7.5
4.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
8Affected product versions listed by NVD
8References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The deprecated compatibility function clnt_create in the sunrpc module of the GNU C Library (aka glibc) through 2.34 copies its hostname argument on the stack without validating its length, which may result in a buffer overflow, potentially resulting in a denial of service or (if an application is not built with a stack protector enabled) arbitrary code execution.

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

Affected products

8 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/202208-24 Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=22542 ExploitIssue TrackingThird Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/202208-24 Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=22542 ExploitIssue TrackingThird Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html PatchThird Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-23219), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.