CVE-2021-33574 - CVE House
Back to Database
Status published Critical CVE-2021-33574

The mq_notify function in the GNU C Library (aka glibc)...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-33574

Credits & Attribution

No credits recorded in the NVD database.

References

More from gnu

View All →
CVE-2024-10524
GNU Wget is vulnerable to an SSRF attack when accessing partially-user-controlled shorthand URLs
Medium 6.5
CVE-2022-48339
An issue was discovered in GNU Emacs through 28.2. htmlfontify.el...
Unknown 0
CVE-2022-48338
An issue was discovered in GNU Emacs through 28.2. In...
Unknown 0
CVE-2022-48337
GNU Emacs through 28.2 allows attackers to execute commands via...
Unknown 0
CVE-2022-48303
GNU Tar through 1.34 has a one-byte out-of-bounds read that...
Unknown 0

Affected Vendor

Affected Software

glibc, fedora, cloud backup, e-series santricity os controller, solidfire baseboard management controller firmware, h300s firmware, h500s firmware, h700s firmware, h300e firmware, h500e firmware, h700e firmware, h410s firmware, debian linux
Vulnerable Versions:
2.32, 2.33, 33, 34, 11.0, 10.0

Timeline

Official Publish: May 25th, 2021
Last Modified: August 3rd, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.