Bug 2267513 (CVE-2021-47069)

Summary:	CVE-2021-47069 kernel: ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry
Product:	[Other] Security Response	Reporter:	ybuenos
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, allarkin, aquini, bhu, chwhite, cye, cyin, dbohanno, debarbos, dfreiber, drow, dvlasenk, esandeen, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, lzampier, mleitner, mmilgram, mstowell, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, scweaver, sidakwo, sukulkar, tglozar, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the Linux kernel’s IPC system. This flaw allows an attacker to use a specially crafted program to cause a rare race condition, leading to a denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2267514
Bug Blocks:	2267666

Description ybuenos 2024-03-03 09:16:35 UTC

In the Linux kernel, the following vulnerability has been resolved:

ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry

The Linux kernel CVE team has assigned CVE-2021-47069 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024030141-CVE-2021-47069-5797@gregkh/T/#u

Comment 1 ybuenos 2024-03-03 09:17:18 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2267514]

Comment 5 Justin M. Forbes 2024-03-04 20:49:14 UTC

This was fixed for Fedora with the 5.12.7 stable kernel updates.

Comment 6 Alex 2024-06-09 15:08:47 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47069 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags DANGER RACE  ; these flags parsed automatically based on patche data). Such automatic check happens only for Low/Moderates (and only when not from reporter, but parsing already existing CVE). Highs always checked manually (I check it myself and then we check it again in Remediation team). In rare cases some of the Moderates could be increased to High later.

Comment 8 errata-xmlrpc 2024-07-02 08:54:17 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:4211 https://access.redhat.com/errata/RHSA-2024:4211

Comment 9 errata-xmlrpc 2024-07-08 02:01:59 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:4352 https://access.redhat.com/errata/RHSA-2024:4352

Comment 11 errata-xmlrpc 2024-08-21 11:52:29 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2024:5692 https://access.redhat.com/errata/RHSA-2024:5692

Comment 13 errata-xmlrpc 2024-09-03 15:42:31 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2024:6206 https://access.redhat.com/errata/RHSA-2024:6206