CVE-2022-23219

A stack based buffer-overflow vulnerability was found in the deprecated compatibility function clnt_create() in the sunrpc's clnt_gen.c module of the GNU C Library (aka glibc) through 2.34. This vulnerability copies its hostname argument onto 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) lead to arbitrary code execution.

Red Hat Product Security has rated this issue as having Moderate security impact and the issue is not currently planned to be addressed in future updates for Red Hat Enterprise Linux 6 and 7, hence, marked as Out-of-Support-Scope. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/

Red Hat Enterprise Linux 9 is not affected by this CVE as the fix was backported to glibc-2.34 and included in the 9.0 GA release.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

An application built with stack protector enabled can mitigate this issue.