Bug 2263392 (CVE-2023-20577)

Summary:	CVE-2023-20577 hw: amd: SPI flash RCE
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:	allarkin, carnil, dfreiber, drow, jburrell, pbrobinson, security-response-team, vkumar
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 a heap overflow in the SMM module. This issue could allow a local unauthenticated attacker to enable writing to SPI flash to execute arbitrary code.	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:	2264235
Bug Blocks:	2263273

Description Nick Tait 2024-02-08 17:32:02 UTC

A flaw found for the AMD CPU. A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.

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

Comment 5 Nick Tait 2024-02-14 17:29:15 UTC

Created linux-firmware tracking bugs for this issue:

Affects: fedora-all [bug 2264235]

Comment 6 Peter Robinson 2024-02-25 14:06:23 UTC

This is a UEFI firmware update from the device vendor, not an update in linux-firmware, these should be closed out as such.