CVE-2023-39180
Last modified
CVE-2023-39180 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A flaw was found within the handling of SMB2_READ commands in the kernel ksmbd module. The issue results from not releasing memory after its effective lifetime. EPSS estimates a 1.38% chance of exploitation in the next 30 days.
Description
A flaw was found within the handling of SMB2_READ commands in the kernel ksmbd module. The issue results from not releasing memory after its effective lifetime. An attacker can leverage this to create a denial-of-service condition on affected installations of Linux. Authentication is not required to exploit this vulnerability, but only systems with ksmbd enabled are vulnerable.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | All versions |
References
- https://access.redhat.com/security/cve/CVE-2023-39180Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2326531Issue Tracking, Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-24-589/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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