Bug 2257582 (CVE-2022-36763)

Summary:	CVE-2022-36763 EDK2: heap buffer overflow in Tcg2MeasureGptTable()
Product:	[Other] Security Response	Reporter:	TEJ RATHI <trathi>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A heap buffer overflow flaw was found via the Tcg2MeasureGptTable() function in EDK2, arising from inadequate validation of the GPT Primary Header, presenting a minor risk to confidentiality and integrity. The primary consequence is likely a crash or denial of service. This issue may allow a local attacker to craft a GPT table, causing an integer overflow and consequent buffer overflow.	Story Points:	---
Clone Of:		Environment:
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Regression:	---	Mount Type:	---
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2257591, 2257588
Bug Blocks:	2257597

Description TEJ RATHI 2024-01-10 06:12:09 UTC

EDK2 is susceptible to a vulnerability in the Tcg2MeasureGptTable() function, allowing a user to trigger a heap buffer overflow via a local network. Successful exploitation of this vulnerability may result in a compromise of confidentiality, integrity, and/or availability.

https://github.com/tianocore/edk2/security/advisories/GHSA-xvv8-66cq-prwr

Comment 1 TEJ RATHI 2024-01-10 06:35:59 UTC

Created edk2 tracking bugs for this issue:

Affects: epel-all [bug 2257591]
Affects: fedora-all [bug 2257588]

Comment 3 errata-xmlrpc 2024-04-30 09:57:37 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:2264 https://access.redhat.com/errata/RHSA-2024:2264

Comment 4 errata-xmlrpc 2024-05-22 09:35:32 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:3017 https://access.redhat.com/errata/RHSA-2024:3017