Bug 2158381 (CVE-2022-47520)

Summary:	CVE-2022-47520 kernel: an out-of-bounds read in drivers/net/wireless/microchip/wilc1000/hif.c
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, allarkin, bhu, chwhite, crwood, ddepaula, debarbos, dfreiber, dhoward, dvlasenk, ezulian, fhrbata, hkrzesin, jarod, jburrell, jfaracco, jferlan, jforbes, jlelli, joe.lawrence, jpazdziora, jshortt, jstancek, jwyatt, kcarcia, kernel-mgr, lgoncalv, lleshchi, lzampier, nmurray, ptalbert, qzhao, rogbas, rvrbovsk, scweaver, tyberry, vkumar, walters, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 6.0.11	Doc Type:	If docs needed, set a value
Doc Text:	An out-of-bounds read flaw was found in the Linux kernel’s Atmel WILC1000 802.11 SoC driver. This flaw allows a local to crash or potentially escalate their privileges on the system.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-01-08 09:24:45 UTC	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:
Bug Blocks:	2158398

Description Marian Rehak 2023-01-05 09:16:36 UTC

Missing offset validation in drivers/net/wireless/microchip/wilc1000/hif.c in the WILC1000 wireless driver can trigger an out-of-bounds read when parsing a Robust Security Network (RSN) information element from a Netlink packet.

Reference:

https://github.com/torvalds/linux/commit/cd21d99e595ec1d8721e1058dcdd4f1f7de1d793

Comment 1 Jan Pazdziora (Red Hat) 2023-07-29 07:47:04 UTC

Hello,

could we have a brief summary here and in the CVE page https://access.redhat.com/security/cve/CVE-2022-47520 why all RHEL versions are considered Not affected?

Thank you, Jan