CVE-2021-33574

CVE Details

Release Date:

2021-05-25

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.

See more information about CVE-2021-33574 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	9.8	Base Metrics:	AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Access Vector:	Network	Attack Complexity:	Low
Privileges Required:	None	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	High
Integrity Impact:	High	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (glibc)	ELSA-2021-4358	2021-11-16
Oracle Linux version 8 (glibc)	ELSA-2021-9560	2021-11-23

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team