CVE-2021-33574

9.8CRITICAL

Key Information:

Vendor
Gnu
Status
Glibc
Vendor
CVE Published:
25 May 2021

Summary

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
https://sourceware.org/bugzilla/show_bug.cgi?id=27896#c1
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisory

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.