Bug 2257683 (CVE-2023-51781)

Summary: CVE-2023-51781 kernel: use-after-free in net/appletalk/ddp.c
Product: [Other] Security Response Reporter: Patrick Del Bello <pdelbell>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: acaringi, allarkin, bhu, chwhite, cye, cyin, dbohanno, debarbos, dfreiber, drow, dvlasenk, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, lzampier, mcascell, mleitner, mmilgram, mstowell, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, rysulliv, scweaver, tglozar, tyberry, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: kernel 6.6.8 Doc Type: If docs needed, set a value
Doc Text:
A use-after-free flaw was found in the Linux kernel's atalk_ioctl in net/appletalk/ddp.c, due to a race condition in atalk_recvmsg. This flaw allows an attacker to possibly gain unauthorized access, escalate privileges, or cause the system to crash.
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: 2257685    
Bug Blocks: 2257681    

Description Patrick Del Bello 2024-01-10 13:13:15 UTC
An issue was discovered in the Linux kernel before 6.6.8. atalk_ioctl in net/appletalk/ddp.c has a use-after-free because of an atalk_recvmsg race condition.

Comment 1 Patrick Del Bello 2024-01-10 13:13:43 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2257685]

Comment 3 Justin M. Forbes 2024-01-10 19:45:29 UTC
For Fedora # CONFIG_DEV_APPLETALK is not set