Bug 2281907 (CVE-2024-35966)

Summary:	CVE-2024-35966 kernel: Bluetooth: RFCOMM: Fix not validating setsockopt user input
Product:	[Other] Security Response	Reporter:	Robb Gatica <rgatica>
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 6.8.7, kernel 6.9	Doc Type:	If docs needed, set a value
Doc Text:	This is a vulnerability in the Linux kernel's Bluetooth RFCOMM protocol. It occurs because the rfcomm_sock_setsockopt_old() function fails to properly validate the length of user-supplied data, leading to out-of-bounds memory reads. This flaw could result in system instability or crashes.	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:	2281908
Bug Blocks:	2282032

Description Robb Gatica 2024-05-20 16:46:00 UTC

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

Bluetooth: RFCOMM: Fix not validating setsockopt user input

The Linux kernel CVE team has assigned CVE-2024-35966 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052021-CVE-2024-35966-e107@gregkh/T

Comment 1 Robb Gatica 2024-05-20 16:46:35 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2281908]

Comment 5 Alex 2024-06-09 15:44:04 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-35966 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags REMOTE READ KASAN OOB SIMPLEFIX NETWORK  ; 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 17 errata-xmlrpc 2025-05-13 08:27:39 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:6966 https://access.redhat.com/errata/RHSA-2025:6966