Bug 1225004 (CVE-2023-52768)

Summary:	VUL-0: CVE-2023-52768: kernel: wifi: wilc1000: use vmm_table as array in wilc struct
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Security Team bot <security-team>
Status:	RESOLVED INVALID	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	carlos.lopez, jlee
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/407138/
Whiteboard:	CVSSv3.1:SUSE:CVE-2023-52768:5.6:(AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description SMASH SMASH 2024-05-22 13:10:04 UTC

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

wifi: wilc1000: use vmm_table as array in wilc struct

Enabling KASAN and running some iperf tests raises some memory issues with
vmm_table:

BUG: KASAN: slab-out-of-bounds in wilc_wlan_handle_txq+0x6ac/0xdb4
Write of size 4 at addr c3a61540 by task wlan0-tx/95

KASAN detects that we are writing data beyond range allocated to vmm_table.
There is indeed a mismatch between the size passed to allocator in
wilc_wlan_init, and the range of possible indexes used later: allocation
size is missing a multiplication by sizeof(u32)

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-52768
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2023/CVE-2023-52768.mbox
https://git.kernel.org/stable/c/541b3757fd443a68ed8d25968eae511a8275e7c8
https://git.kernel.org/stable/c/4b0d6ddb6466d10df878a7787f175a0e4adc3e27
https://git.kernel.org/stable/c/6aaf7cd8bdfe245d3c9a8b48fe70c2011965948e
https://git.kernel.org/stable/c/3ce1c2c3999b232258f7aabab311d47dda75605c
https://git.kernel.org/stable/c/05ac1a198a63ad66bf5ae8b7321407c102d40ef3
https://www.cve.org/CVERecord?id=CVE-2023-52768

Comment 2 Carlos López 2024-05-28 10:04:48 UTC

Nothing to do, closing.