Bug 1225481 (CVE-2023-52755)

Summary:	VUL-0: CVE-2023-52755: kernel: ksmbd: fix slab out of bounds write in smb_inherit_dacl()
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Security Team bot <security-team>
Status:	NEW ---	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	gabriele.sonnu, vasant.karasulli
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/407087/
Whiteboard:	CVSSv3.1:SUSE:CVE-2023-52755:5.5:(AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description SMASH SMASH 2024-05-28 11:54:08 UTC

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

ksmbd: fix slab out of bounds write in smb_inherit_dacl()

slab out-of-bounds write is caused by that offsets is bigger than pntsd
allocation size. This patch add the check to validate 3 offsets using
allocation size.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-52755
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2023/CVE-2023-52755.mbox
https://git.kernel.org/stable/c/aaf0a07d60887d6c36fc46a24de0083744f07819
https://git.kernel.org/stable/c/8387c94d73ec66eb597c7a23a8d9eadf64bfbafa
https://git.kernel.org/stable/c/09d9d8b40a3338193619c14ed4dc040f4f119e70
https://git.kernel.org/stable/c/712e01f32e577e7e48ab0adb5fe550646a3d93cb
https://git.kernel.org/stable/c/eebff19acaa35820cb09ce2ccb3d21bee2156ffb
https://www.cve.org/CVERecord?id=CVE-2023-52755

Comment 2 Enzo Matsumiya 2024-06-13 16:13:23 UTC

ksmbd is disabled in SLE/Leap and TW should get its fixes through version bumps.

Reassigning.