Bug 2281718 (CVE-2024-35878)

Summary:	CVE-2024-35878 kernel: of: module: prevent NULL pointer dereference in vsnprintf()
Product:	[Other] Security Response	Reporter:	ybuenos
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, 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 6.6.26, kernel 6.8.5, kernel 6.9	Doc Type:	If docs needed, set a value
Doc Text:	A null pointer dereference vulnerability was found in vsnprintf when str and len parameters are passed to vsnprintf(), which only allows passing a NULL ptr when the length is 0. This issue can result in a crash and damage to availability.	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:	2281719
Bug Blocks:	2281792

Description ybuenos 2024-05-20 12:20:49 UTC

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

of: module: prevent NULL pointer dereference in vsnprintf()

The Linux kernel CVE team has assigned CVE-2024-35878 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024051943-CVE-2024-35878-5af8@gregkh/T

Comment 1 ybuenos 2024-05-20 12:21:35 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2281719]

Comment 3 Alex 2024-06-09 15:31:51 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-35878 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags NULLPTR 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 9 errata-xmlrpc 2024-11-12 09:30:35 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