Bug 2320768 (CVE-2022-49023)

Summary:	CVE-2022-49023 kernel: wifi: cfg80211: fix buffer overflow in elem comparison
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dfreiber, drow, jburrell, 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 buffer overflow vulnerability was found in the Linux kernel. When performing an elem comparison, no length checking is performed, which can result in the system's loss of availability.	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:

Description OSIDB Bzimport 2024-10-21 22:03:01 UTC

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

wifi: cfg80211: fix buffer overflow in elem comparison

For vendor elements, the code here assumes that 5 octets
are present without checking. Since the element itself is
already checked to fit, we only need to check the length.

Comment 1 Avinash Hanwate 2024-10-22 05:56:35 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024102154-CVE-2022-49023-381d@gregkh/T