<p>Upgrade <code>Centos:8</code> <code>glibc</code> to version 0:2.28-164.el8 or higher.</p>

Use After Free Affecting glibc package, versions <0:2.28-164.el8

Snyk CVSS

Attack Complexity High

Availability High

Threat Intelligence

EPSS 0.28% (65^th percentile)

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Snyk ID SNYK-CENTOS8-GLIBC-2139484
published 26 Jul 2021
disclosed 21 May 2021

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Introduced: 21 May 2021

CVE-2021-33574 Open this link in a new tab CWE-416 Open this link in a new tab

How to fix?

Upgrade Centos:8 glibc to version 0:2.28-164.el8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Centos:8. See How to fix? for Centos:8 relevant fixed versions and status.

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.