Bug 2266824 (CVE-2021-46975)

Summary:	CVE-2021-46975 kernel: netfilter: conntrack: Make global sysctls readonly in non-init netns
Product:	[Other] Security Response	Reporter:	Avinash Hanwate <ahanwate>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
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, rysulliv, scweaver, sidakwo, sukulkar, tglozar, tyberry, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 4.9.269, kernel 4.14.233, kernel 4.19.191, kernel 5.4.120, kernel 5.10.35, kernel 5.11.19, kernel 5.12.2, kernel 5.13	Doc Type:	If docs needed, set a value
Doc Text:	[REJECTED CVE] In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: Make global sysctls readonly in non-init netns The Linux kernel CVE team has assigned CVE-2021-46975 to this issue.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2024-04-26 10:54:23 UTC	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:	2266825
Bug Blocks:	2266839

Description Avinash Hanwate 2024-02-29 06:56:24 UTC

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

netfilter: conntrack: Make global sysctls readonly in non-init netns

The Linux kernel CVE team has assigned CVE-2021-46975 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024022721-CVE-2021-46975-248d@gregkh/T/#u

Comment 1 Avinash Hanwate 2024-02-29 06:57:01 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2266825]

Comment 5 Justin M. Forbes 2024-03-01 22:26:30 UTC

This was fixed for Fedora with the 5.11.19 stable kernel updates.

Comment 7 Keith Grant 2025-02-27 17:58:38 UTC

This CVE was rejected upstream on Tue Mar 19 13:14:36 2024 +0000