Bug 2270879 (CVE-2024-26643)

Summary:	CVE-2024-26643 kernel: netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout
Product:	[Other] Security Response	Reporter:	Marco Benatto <mbenatto>
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:	kernel 6.8	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in the netfilter/nf_tables subsystem of Linux Kernel, where a race condition caused where the garbage collector could prematurely collect elements from anonymous sets with timeouts while they were being released.	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:	2270880
Bug Blocks:	2270884

Description Marco Benatto 2024-03-21 22:18:49 UTC

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

netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout

The Linux kernel CVE team has assigned CVE-2024-26643 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024032150-CVE-2024-26643-4f9d@gregkh/T

Comment 1 Marco Benatto 2024-03-21 22:19:31 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2270880]

Comment 6 errata-xmlrpc 2024-05-23 07:20:05 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:3306 https://access.redhat.com/errata/RHSA-2024:3306

Comment 7 errata-xmlrpc 2024-05-29 08:11:28 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:3460 https://access.redhat.com/errata/RHSA-2024:3460

Comment 8 errata-xmlrpc 2024-05-29 08:47:40 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:3461 https://access.redhat.com/errata/RHSA-2024:3461

Comment 9 errata-xmlrpc 2024-06-05 00:31:30 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:3618 https://access.redhat.com/errata/RHSA-2024:3618

Comment 10 errata-xmlrpc 2024-06-05 10:04:36 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:3627 https://access.redhat.com/errata/RHSA-2024:3627

Comment 11 Alex 2024-06-09 15:05:34 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-26643 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags REMOTE NETFILTER RACE IMPROVEONLY  ; 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.