Bug 2281229 (CVE-2024-35803)

Summary:	CVE-2024-35803 kernel: x86/efistub: Call mixed mode boot services on the firmware's stack
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, rysulliv, scweaver, sidakwo, sukulkar, tglozar, tyberry, vkumar, vsroka, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 6.1.84, kernel 6.6.24, kernel 6.7.12, kernel 6.8.3, kernel 6.9	Doc Type:	If docs needed, set a value
Doc Text:	A security vulnerability was identified in the Linux kernel's EFI (Extensible Firmware Interface) stub, specifically affecting systems operating in mixed-mode environments. The issue arises from the EFI stub's handling of boot services, which can lead to stack overflows and potential system instability.	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:	2281230
Bug Blocks:	2281794

Description Zack Miele 2024-05-17 23:58:33 UTC

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

x86/efistub: Call mixed mode boot services on the firmware&#39;s stack

The Linux kernel CVE team has assigned CVE-2024-35803 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024051739-CVE-2024-35803-c81f@gregkh/T

Comment 1 Zack Miele 2024-05-17 23:59:09 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2281230]