Bug 2267755 (CVE-2023-52576)

Summary:	CVE-2023-52576 kernel: x86/mm, kexec, ima: potential use-after-free in memblock_isolate_range()
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, jforbes, 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 6.1.56, kernel 6.5.6, kernel 6.6	Doc Type:	If docs needed, set a value
Doc Text:		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:
Bug Blocks:	2267764

Description ybuenos 2024-03-04 17:58:53 UTC

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

x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()

The Linux kernel CVE team has assigned CVE-2023-52576 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024030257-CVE-2023-52576-7ee2@gregkh/T/#u

Comment 4 Alex 2024-06-09 16:55:58 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2023-52576 is: CHECK	Maybe valid. Check manually. with impact LOW (that is an approximation based on flags KASAN DANGER INIT SIMPLEFIX UAF  ; 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.