CVE-2023-39176
Last modified
CVE-2023-39176 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.66% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | All versions |
References
- https://access.redhat.com/security/cve/CVE-2023-39176Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2326503Issue Tracking, Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-24-586/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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