Bug 2281133 (CVE-2024-27434)

Summary:	CVE-2024-27434 kernel: wifi: iwlwifi: mvm: don't set the MFP flag for the GTK
Product:	[Other] Security Response	Reporter:	Zack Miele <zmiele>
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, 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 6.6.23, kernel 6.7.11, kernel 6.8.2, kernel 6.9	Doc Type:	If docs needed, set a value
Doc Text:	CVE-2024-27434 is a flaw in the Linux kernel’s iwlwifi driver related to handling Management Frame Protection (MFP) in certain Wi-Fi configurations. When connecting to an access point using TKIP as the group cipher, the driver incorrectly applies the MFP flag to the Group Temporal Key (GTK), which is not supported in this context. This can result in firmware crashes and instability. The issue has been fixed by ensuring the driver does not set the MFP flag for incompatible group ciphers like TKIP. Updating to a patched kernel version is recommended to resolve this vulnerability.	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:	2281134
Bug Blocks:	2281733

Description Zack Miele 2024-05-17 22:29:21 UTC

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

wifi: iwlwifi: mvm: don&#39;t set the MFP flag for the GTK

The Linux kernel CVE team has assigned CVE-2024-27434 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024051756-CVE-2024-27434-ac61@gregkh/T

Comment 1 Zack Miele 2024-05-17 22:29:58 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2281134]

Comment 5 Alex 2024-06-09 15:37:07 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-27434 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags REMOTE DANGER SIMPLEFIX  ; 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 11 errata-xmlrpc 2024-08-08 04:42:31 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:5102 https://access.redhat.com/errata/RHSA-2024:5102

Comment 12 errata-xmlrpc 2024-08-08 04:54:02 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:5101 https://access.redhat.com/errata/RHSA-2024:5101

Comment 13 errata-xmlrpc 2024-08-14 00:48:12 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:5363 https://access.redhat.com/errata/RHSA-2024:5363