Bug 2281322 (CVE-2023-52681)

Summary:	CVE-2023-52681 kernel: efivarfs: Free s_fs_info on unmount
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, 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 6.1.75, kernel 6.6.14, kernel 6.7.2, kernel 6.8	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the efivarfs filesystem in the Linux kernel, where s_fs_info is not properly freed upon unmounting. This oversight can lead to a use-after-free condition, which could be exploited by an attacker to execute arbitrary code or cause a system crash.	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:	2281323
Bug Blocks:	2281749

Description Zack Miele 2024-05-18 01:25:12 UTC

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

efivarfs: Free s_fs_info on unmount

The Linux kernel CVE team has assigned CVE-2023-52681 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024051751-CVE-2023-52681-9f54@gregkh/T

Comment 1 Zack Miele 2024-05-18 01:25:48 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2281323]

Comment 2 Alex 2024-06-09 13:56:24 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2023-52681 is: 	SKIP	The Fixes patch not applied yet, so unlikely that actual: 5329aa5101f7	YES			NO	NO	unknown	 (where first YES/NO value means if related sources built).

Comment 3 Alex 2024-06-09 13:56:34 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2023-52681 is: 	SKIP	The Fixes patch not applied yet, so unlikely that actual: 5329aa5101f73c451bcd48deaf3f296685849d9c	YES			NO	NO	unknown	 (where first YES/NO value means if related sources built).