Bug 2281909 (CVE-2024-35965)

Summary:	CVE-2024-35965 kernel: Bluetooth: L2CAP: 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 6.1.87, kernel 6.8.7, kernel 6.9	Doc Type:	If docs needed, set a value
Doc Text:	CVE-2024-35965 is a vulnerability in the Linux kernel's Bluetooth L2CAP implementation, caused by inadequate input length validation in the setsockopt function. This flaw allows overly large user-provided data to be copied into kernel memory, potentially leading to buffer overflows, system instability, or privilege escalation. The issue has been fixed by adding proper checks to ensure data size is within acceptable limits. Users should update their Linux kernel to the patched version to mitigate this risk.	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:	2281911
Bug Blocks:	2282032

Description Robb Gatica 2024-05-20 16:48:46 UTC

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

Bluetooth: L2CAP: Fix not validating setsockopt user input

The Linux kernel CVE team has assigned CVE-2024-35965 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052021-CVE-2024-35965-19f1@gregkh/T

Comment 1 Robb Gatica 2024-05-20 16:49:25 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2281911]

Comment 5 Alex 2024-06-09 15:43:46 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-35965 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags REMOTE SIMPLEFIX NETWORK 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.

Comment 17 errata-xmlrpc 2025-05-13 08:23:59 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