CVEvulnerability
CVE-2023-39176
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2024-11-18
- Last modified
- 2026-10-08
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.8 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-125
Description
A flaw was found within the parsing of SMB2 requests that have a transform header in the kernel ksmbd module. 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 to disclose sensitive information on affected installations of Linux. Only systems with ksmbd enabled are vulnerable to this CVE.
Affected configurations
• linux linux kernel (>= 5.15.121 < 5.15.127)
• linux linux kernel (>= 6.1.36 < 6.1.46)
• linux linux kernel (>= 6.3 < 6.3.10)
• linux linux kernel (>= 6.4 < 6.4.11)
Related
Weakness · CWE (1)
- CWE-125 Out-of-bounds Read weakness
References
- https://access.redhat.com/security/cve/CVE-2023-39176 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2326503 Issue Tracking, Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-24-586/ Third Party Advisory