Bug 2263271 (AMD-SN-7009, CVE-2023-20576)

Summary:	CVE-2023-20576 hw: amd: Insufficient Verification of Data Authenticity in AGESATM
Product:	[Other] Security Response	Reporter:	Nick Tait <ntait>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	ahanwate, allarkin, dfreiber, drow, jburrell, jstancek, kgrant, mmilgram, nmurray, scweaver, security-response-team, vkumar, wmealing
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in AMD hardware due to insufficient verification of data authenticity in AGESA. This issue may allow a local unauthenticated attacker to update SPI ROM data, potentially resulting in denial of service or privilege escalation.	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:	2264234
Bug Blocks:	2263273

Description Nick Tait 2024-02-07 23:45:51 UTC

A flaw found for the AMD CPU. Insufficient Verification of Data Authenticity in AGESA™ may allow an attacker to update SPI ROM data potentially resulting in denial of service or privilege escalation.

Reference:
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7009.html

Comment 8 Nick Tait 2024-02-14 17:27:53 UTC

Created linux-firmware tracking bugs for this issue:

Affects: fedora-all [bug 2264234]