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CVE-2021-33574

nvd nist
Published: May 25, 2021Modified: Jun 17, 2026

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9.8
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 3.9 / Impact: 5.9
Source: NVD

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.

Affected (15)

Show all products
Gnu: Glibc · Fedoraproject: Fedora · Netapp: 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: Debian Linux
Gnu
1 product
Glibc
Fedoraproject
1 product
Fedora
Netapp
10 products
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
1 product
Debian Linux
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Gnu
Glibc
Version 2.32
Glibc
Version 2.33
Configuration B
2 vulnerable
Vulnerable SoftwareAffected Versions
Fedoraproject
Fedora
Version 33
Fedora
Version 34
Configuration C
3 vulnerable
Vulnerable SoftwareAffected Versions
Cloud Backup
All versions
E Series Santricity Os Controller
From 11.0 to 11.70.1
Solidfire Baseboard Management Controller Firmware
All versions
Configuration D
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H300s Firmware
All versions
Running on/withPlatform Versions
Netapp
H300s
All versions
Configuration E
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H500s Firmware
All versions
Running on/withPlatform Versions
Netapp
H500s
All versions
Configuration F
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H700s Firmware
All versions
Running on/withPlatform Versions
Netapp
H700s
All versions
Configuration G
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H300e Firmware
All versions
Running on/withPlatform Versions
Netapp
H300e
All versions
Configuration H
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H500e Firmware
All versions
Running on/withPlatform Versions
Netapp
H500e
All versions
Configuration I
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H700e Firmware
All versions
Running on/withPlatform Versions
Netapp
H700e
All versions
Configuration J
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H410s Firmware
All versions
Running on/withPlatform Versions
Netapp
H410s
All versions
Configuration K
1 vulnerable
Vulnerable SoftwareAffected Versions
Debian Linux
Version 10.0

Related CWEs

CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (14)

Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
ExploitIssue TrackingThird Party Advisory
Source: cve@mitre.org
Issue Tracking
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking

Timeline

No history available yet.