Bug 2281781 (CVE-2024-35862)

Summary:	CVE-2024-35862 kernel: smb: client: fix potential UAF in smb2_is_network_name_deleted()
Product:	[Other] Security Response	Reporter:	ybuenos
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
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 6.1.85, kernel 6.6.26, kernel 6.8.5, kernel 6.9	Doc Type:	If docs needed, set a value
Doc Text:	A use-after-free flaw was found in the Linux kernel in smb smb2_is_network_name_deleted() when exiting a session. This flaw allows a local attacker to crash the system.	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:	2281782
Bug Blocks:	2281792

Description ybuenos 2024-05-20 13:41:36 UTC

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

smb: client: fix potential UAF in smb2_is_network_name_deleted()

The Linux kernel CVE team has assigned CVE-2024-35862 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024051937-CVE-2024-35862-eda2@gregkh/T

Comment 2 ybuenos 2024-05-20 13:42:25 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2281782]

Comment 4 Alex 2024-06-09 17:19:57 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-35862 is: CHECK	Maybe valid. Check manually. with impact LOW (that is an approximation based on flags DISK INIT SIMPLEFIX UAF SERVERTOCLIENT  ; these flags parsed automatically based on patch 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 5 errata-xmlrpc 2024-11-12 09:31:10 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:9315 https://access.redhat.com/errata/RHSA-2024:9315