CVE-2021-33574

Description

The mq_notify function in the GNU C Library (aka glibc) versions 2.32 and 2.33 has a use-after-free. It may use the notification thread attributes object (passed through its struct sigevent parameter) after it has been freed by the caller, leading to a denial of service (application crash) or possibly unspecified other impact.

References

https://sourceware.org/bugzilla/show_bug.cgi?id=27896#c1

https://security.netapp.com/advisory/ntap-20210629-0005/

https://security.gentoo.org/glsa/202107-07

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RBUUWUGXVILQXVWEOU7N42ICHPJNAEUP/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJYYIMDDYOHTP2PORLABTOHYQYYREZDD/

https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3