Bug 1226179 (CVE-2023-39180) - VUL-0: CVE-2023-39180: kernel: ksmbd: Read Request Memory Leak Denial-of-Service Vulnerability
Summary: VUL-0: CVE-2023-39180: kernel: ksmbd: Read Request Memory Leak Denial-of-Serv...
Status: RESOLVED FIXED
Alias: CVE-2023-39180
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Minor
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/410020/
Whiteboard: CVSSv3.1:SUSE:CVE-2023-39180:4.0:(AV:...
Keywords:
Depends on:
Blocks:
 
Reported: 2024-06-11 08:55 UTC by SMASH SMASH
Modified: 2024-06-17 12:23 UTC (History)
2 users (show)

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

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Description SMASH SMASH 2024-06-11 08:55:20 UTC 
This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Linux Kernel. Authentication is not required to exploit this vulnerability, but only systems with ksmbd enabled are vulnerable.

The specific flaw exists within the handling of SMB2_READ commands. The issue results from not releasing memory after its effective lifetime. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

References:
https://www.zerodayinitiative.com/advisories/ZDI-24-589/
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-39180

Patch:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e202a1e8634b186da38cbbff85382ea2b9e297cf
Comment 2 Enzo Matsumiya 2024-06-17 11:40:26 UTC 
ksmbd is disabled/unsupported in SLE/ALP/Leap.
TW should pick its fixes from version bumps.

Reassigning.
Comment 3 Andrea Mattiazzo 2024-06-17 12:23:53 UTC 
All done, closing.