Bug 2282688 (CVE-2023-52820)

Summary:	CVE-2023-52820 kernel: drm_lease.c: copy user-array safely
Product:	[Other] Security Response	Reporter:	Mauro Matteo Cascella <mcascell>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	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, ndegraef, 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 6.1.64, kernel 6.5.13, kernel 6.6.3, kernel 6.7	Doc Type:	If docs needed, set a value
Doc Text:	[REJECTED CVE] In the Linux kernel, the following vulnerability has been resolved: drm_lease.c: copy user-array safely Currently, there is no overflow-check with memdup_user(). Use the new function memdup_array_user() instead of memdup_user() for duplicating the user-space array safely.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2024-07-02 11:01:21 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:	2282862

Description Mauro Matteo Cascella 2024-05-22 19:25:53 UTC

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

drm_lease.c: copy user-array safely

The Linux kernel CVE team has assigned CVE-2023-52820 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052105-CVE-2023-52820-1d6d@gregkh/T

Comment 4 Alex 2024-06-09 17:40:46 UTC

The result of automatic check (that is developed by Alexander Larkin) for this CVE-2023-52820 is: CHECK	Maybe valid. Check manually. with impact LOW (that is an approximation based on flags SIMPLEFIX  ; 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.

Comment 6 Niels De Graef 2024-06-24 14:35:42 UTC

From https://lore.kernel.org/linux-cve-announce/2024052441-REJECTED-db42@gregkh/

> CVE-2023-52820 has now been rejected and is no longer a valid CVE.

Comment 7 TEJ RATHI 2024-06-26 07:22:44 UTC

Yes, I think we should drop this CVE from https://errata.engineering.redhat.com/advisory/128795, and I'll then mark it as rejected.