CVE-2021-33574
glibc SigEvent Use-after-Free 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.
INFO
Published Date :
May 25, 2021, 10:15 p.m.
Last Modified :
Nov. 7, 2023, 3:35 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-33574 has a 9 public PoC/Exploit
available at Github.
Go to the Public Exploits
tab to see the list.
Affected Products
The following products are affected by CVE-2021-33574
vulnerability.
Even if cvefeed.io
is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-33574
.
URL | Resource |
---|---|
https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html | Mailing List Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJYYIMDDYOHTP2PORLABTOHYQYYREZDD/ | |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RBUUWUGXVILQXVWEOU7N42ICHPJNAEUP/ | |
https://security.gentoo.org/glsa/202107-07 | Third Party Advisory |
https://security.netapp.com/advisory/ntap-20210629-0005/ | Third Party Advisory |
https://sourceware.org/bugzilla/show_bug.cgi?id=27896 | Exploit Issue Tracking Third Party Advisory |
https://sourceware.org/bugzilla/show_bug.cgi?id=27896#c1 | Issue Tracking |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
TypeScript JavaScript
None
Shell Dockerfile Go
None
None
Java
None
Java
Random late night exercises
Dockerfile Shell Python HCL
CKS Notes
None
Open Policy Agent
This action can be used to publish security scans done as part of CI/CD on Github to Azure Security Center.
JavaScript TypeScript
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-33574
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-33574
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RBUUWUGXVILQXVWEOU7N42ICHPJNAEUP/ [No types assigned] Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJYYIMDDYOHTP2PORLABTOHYQYYREZDD/ [No types assigned] Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/RBUUWUGXVILQXVWEOU7N42ICHPJNAEUP/ Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/KJYYIMDDYOHTP2PORLABTOHYQYYREZDD/ -
Modified Analysis by [email protected]
Nov. 08, 2022
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 17, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html [No Types Assigned] -
Modified Analysis by [email protected]
Jan. 28, 2022
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/KJYYIMDDYOHTP2PORLABTOHYQYYREZDD/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/KJYYIMDDYOHTP2PORLABTOHYQYYREZDD/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/RBUUWUGXVILQXVWEOU7N42ICHPJNAEUP/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/RBUUWUGXVILQXVWEOU7N42ICHPJNAEUP/ Mailing List, Third Party Advisory Changed Reference Type https://security.gentoo.org/glsa/202107-07 No Types Assigned https://security.gentoo.org/glsa/202107-07 Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20210629-0005/ No Types Assigned https://security.netapp.com/advisory/ntap-20210629-0005/ Third Party Advisory Changed Reference Type https://sourceware.org/bugzilla/show_bug.cgi?id=27896#c1 No Types Assigned https://sourceware.org/bugzilla/show_bug.cgi?id=27896#c1 Issue Tracking Changed CPE Configuration OR *cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* versions up to (including) 2.33 OR *cpe:2.3:a:gnu:glibc:2.32:*:*:*:*:*:*:* *cpe:2.3:a:gnu:glibc:2.33:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:* versions from (including) 11.0 up to (including) 11.70.1 *cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 07, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/KJYYIMDDYOHTP2PORLABTOHYQYYREZDD/ [No Types Assigned] -
CVE Modified by [email protected]
Jul. 06, 2021
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202107-07 [No Types Assigned] -
CVE Modified by [email protected]
Jun. 29, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20210629-0005/ [No Types Assigned] -
CVE Modified by [email protected]
Jun. 14, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/RBUUWUGXVILQXVWEOU7N42ICHPJNAEUP/ [No Types Assigned] -
CVE Modified by [email protected]
Jun. 03, 2021
Action Type Old Value New Value Changed Description The mq_notify function in the GNU C Library (aka glibc) through 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. 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. Added Reference https://sourceware.org/bugzilla/show_bug.cgi?id=27896#c1 [No Types Assigned] -
Initial Analysis by [email protected]
Jun. 01, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://sourceware.org/bugzilla/show_bug.cgi?id=27896 No Types Assigned https://sourceware.org/bugzilla/show_bug.cgi?id=27896 Exploit, Issue Tracking, Third Party Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* versions up to (including) 2.33
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-33574
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-33574
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.39 }} 0.20%
score
0.85929
percentile