1225481 – (CVE-2023-52755) VUL-0: CVE-2023-52755: kernel: ksmbd: fix slab out of bounds write in smb_inherit_dacl()

Bug 1225481 (CVE-2023-52755) - VUL-0: CVE-2023-52755: kernel: ksmbd: fix slab out of bounds write in smb_inherit_dacl()

Summary: VUL-0: CVE-2023-52755: kernel: ksmbd: fix slab out of bounds write in smb_inh...

Status:	NEW

Alias:	CVE-2023-52755

Product:	SUSE Security Incidents
Classification:	Novell Products
Component:	Incidents (show other bugs)
Version:	unspecified
Hardware:	Other Other

Priority:	P3 - Medium Severity: Normal
Target Milestone:	---
Assignee:	Security Team bot
QA Contact:	Security Team bot

URL:	https://smash.suse.de/issue/407087/
Whiteboard:	CVSSv3.1:SUSE:CVE-2023-52755:5.5:(AV:...
Keywords:

Depends on:
Blocks:

Clone This Bug

Reported:	2024-05-28 11:54 UTC by SMASH SMASH
Modified:	2024-06-13 16:13 UTC (History)
CC List:	2 users (show)

See Also:
Found By:	Security Response Team
Services Priority:
Business Priority:
Blocker:	---
Marketing QA Status:	---
IT Deployment:	---

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.

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.