Bug 2217451 (TRIAGE-CVE-2023-3338)

Summary: TRIAGE-CVE-2023-3338 Kernel: NULL Pointer Dereference in DECnet
Product: [Other] Security Response Reporter: Avinash Hanwate <ahanwate>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED DUPLICATE QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: acaringi, allarkin, bhu, chwhite, crwood, dbohanno, ddepaula, debarbos, dfreiber, dvlasenk, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jferlan, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, kernel-mgr, ldoskova, lgoncalv, lleshchi, lzampier, nmurray, ptalbert, qzhao, rogbas, rrobaina, rvrbovsk, rysulliv, scweaver, tyberry, vkumar, walters, wcosta, williams, wmealing, ycote, ymankad
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Last Closed: 2023-06-26 10:11:53 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2217453, 2217454    
Bug Blocks: 2217449    

Description Avinash Hanwate 2023-06-26 09:41:02 UTC 
This crash is due to the dn_nsp_send function (net/decnet/dn_nsp_out.c) which, first off, causes a Denial of Service by preventing the release of locks such as the current sock's sk->sk_lock, but could also lead to Local Privilege Escalation under certain conditions.

https://seclists.org/oss-sec/2023/q2/276
Comment 3 Alex 2023-07-19 13:10:21 UTC 

*** This bug has been marked as a duplicate of bug 2218618 ***