Bug 1225078 (CVE-2023-52827)

Summary: VUL-0: CVE-2023-52827: kernel: wifi: ath12k: fix possible out-of-bound read in ath12k_htt_pull_ppdu_stats()
Product: [Novell Products] SUSE Security Incidents Reporter: SMASH SMASH <smash_bz>
Component: IncidentsAssignee: Security Team bot <security-team>
Status: RESOLVED FIXED QA Contact: Security Team bot <security-team>
Severity: Major    
Priority: P2 - High CC: gabriel.bertazi, meissner, thomas.leroy
Version: unspecified   
Target Milestone: ---   
Hardware: Other   
OS: Other   
URL: https://smash.suse.de/issue/407201/
Whiteboard:
Found By: Security Response Team Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---
Bug Depends on:    
Bug Blocks: 1227321    

Description SMASH SMASH 2024-05-23 08:02:12 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: ath12k: fix possible out-of-bound read in ath12k_htt_pull_ppdu_stats()

len is extracted from HTT message and could be an unexpected value in
case errors happen, so add validation before using to avoid possible
out-of-bound read in the following message iteration and parsing.

The same issue also applies to ppdu_info->ppdu_stats.common.num_users,
so validate it before using too.

These are found during code review.

Compile test only.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-52827
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2023/CVE-2023-52827.mbox
https://git.kernel.org/stable/c/79527c21a3ce04cffc35ea54f74ee087e532be57
https://git.kernel.org/stable/c/c9e44111da221246efb2e623ae1be40a5cf6542c
https://git.kernel.org/stable/c/1bc44a505a229bb1dd4957e11aa594edeea3690e
https://www.cve.org/CVERecord?id=CVE-2023-52827
Comment 2 Takashi Iwai 2024-05-24 07:24:45 UTC 
SLE15-SP5 and older branches don't contain ath12 driver at all, so unaffected.
Reassigned back.
Comment 3 Andrea Mattiazzo 2024-05-24 10:39:12 UTC 
All done, closing.