Executive Summary

Informations
Name CVE-2021-33574 First vendor Publication 2021-05-25
Vendor Cve Last vendor Modification 2021-07-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 9.8
Base Score 9.8 Environmental Score 9.8
impact SubScore 5.9 Temporal Score 9.8
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33574

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-416 Use After Free

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 126

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20210629-0005/
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
GENTOO https://security.gentoo.org/glsa/202107-07
MISC https://sourceware.org/bugzilla/show_bug.cgi?id=27896
https://sourceware.org/bugzilla/show_bug.cgi?id=27896#c1

Alert History

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Date Informations
2021-08-05 01:43:09
  • Multiple Updates
2021-07-07 09:23:09
  • Multiple Updates
2021-07-06 12:40:44
  • Multiple Updates
2021-06-30 00:22:53
  • Multiple Updates
2021-06-29 17:22:57
  • Multiple Updates
2021-06-14 13:23:00
  • Multiple Updates
2021-06-03 21:23:11
  • Multiple Updates
2021-06-01 21:23:08
  • Multiple Updates
2021-05-28 21:23:09
  • Multiple Updates
2021-05-26 05:22:47
  • First insertion