Bug 2282662 (CVE-2023-52843)

Summary: CVE-2023-52843 kernel: llc: verify mac len before reading mac header
Product: [Other] Security Response Reporter: Mauro Matteo Cascella <mcascell>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: acaringi, allarkin, aquini, bhu, chwhite, cye, cyin, dbohanno, debarbos, dfreiber, drow, dvlasenk, esandeen, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, lzampier, mleitner, mmilgram, mstowell, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, rysulliv, scweaver, sidakwo, sukulkar, tglozar, tyberry, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: kernel 4.14.330, kernel 4.19.299, kernel 5.4.261, kernel 5.10.201, kernel 5.15.139, kernel 6.1.63, kernel 6.5.12, kernel 6.6.2, kernel 6.7 Doc Type: If docs needed, set a value
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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: 2282863    

Description Mauro Matteo Cascella 2024-05-22 17:52:29 UTC 
In the Linux kernel, the following vulnerability has been resolved:

llc: verify mac len before reading mac header

The Linux kernel CVE team has assigned CVE-2023-52843 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052112-CVE-2023-52843-6515@gregkh/T
Comment 2 Alex 2024-06-09 17:17:10 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2023-52843 is: CHECK	Maybe valid. Check manually. with impact LOW (that is an approximation based on flags REMOTE READ KASAN SKB IMPROVEONLY  ; these flags parsed automatically based on patch 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.