Bug 2282474 (CVE-2021-47308)

Summary:	CVE-2021-47308 kernel: scsi: libfc: Fix array index out of bound exception
Product:	[Other] Security Response	Reporter:	ybuenos
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, allarkin, aquini, bhu, chwhite, dbohanno, debarbos, dfreiber, drow, dvlasenk, esandeen, ezulian, hkrzesin, jarod, jburrell, jfaracco, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, ldoskova, lgoncalv, mleitner, mmilgram, mstowell, nmurray, ptalbert, rhel-process-autobot, rkeshri, rparrazo, rrobaina, rvrbovsk, scweaver, sidakwo, sukulkar, tglozar, vkumar, watson-tool-maintainers, wcosta, williams, wmealing, ycote, ykopkova
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 4.14.241, kernel 4.19.199, kernel 5.4.135, kernel 5.10.53, kernel 5.13.5, kernel 5.14	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the Linux kernel's libfc component, specifically within the fc_rport_prli_resp() function. This vulnerability is caused by an array index out of bounds exception. Exploiting this flaw could lead to memory corruption, potentially resulting in a denial of service or the disclosure of sensitive information.	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:
Bug Blocks:	2282500

Description ybuenos 2024-05-22 12:28:47 UTC

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

scsi: libfc: Fix array index out of bound exception

The Linux kernel CVE team has assigned CVE-2021-47308 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052128-CVE-2021-47308-e3d8@gregkh/T

Comment 3 Alex 2024-06-09 15:43:37 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47308 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags WRITE OOB SIMPLEFIX  ; these flags parsed automatically based on patche data). Such automatic check happens only for Low/Moderates (and only when not from reporter, but parsing already existing CVE). Highs always checked manually (I check it myself and then we check it again in Remediation team). In rare cases some of the Moderates could be increased to High later.