Bug 1226180 (CVE-2023-39179) - VUL-0: CVE-2023-39179: kernel: ksmbd: Read Request Out-Of-Bounds Read Information Disclosure Vulnerability
Summary: VUL-0: CVE-2023-39179: kernel: ksmbd: Read Request Out-Of-Bounds Read Informa...
Status: RESOLVED FIXED
Alias: CVE-2023-39179
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Major
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/410021/
Whiteboard: CVSSv3.1:SUSE:CVE-2023-39179:7.5:(AV:...
Keywords:
Depends on:
Blocks:
 
Reported: 2024-06-11 09:09 UTC by SMASH SMASH
Modified: 2024-06-17 12:25 UTC (History)
3 users (show)

See Also:
Found By: Security Response Team
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Blocker: ---
Marketing QA Status: ---
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Description SMASH SMASH 2024-06-11 09:09:12 UTC 
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Linux Kernel. Authentication is not required to exploit this vulnerability. However, only systems with ksmbd enabled are vulnerable.

The specific flaw exists within the handling of SMB2 read requests. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the kernel.

References:
https://www.zerodayinitiative.com/advisories/ZDI-24-588/
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-39179

Patch:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e202a1e8634b186da38cbbff85382ea2b9e297cf
Comment 6 Andrea Mattiazzo 2024-06-17 12:25:34 UTC 
All done, closing.