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
Frequently Asked Questions
What is CVE-2023-39176?
How severe is CVE-2023-39176?
How do I fix CVE-2023-39176?
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.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2023
- CVE-2023-39170Rejected reason: This CVE ID has been rejected or withdrawn …
- CVE-2023-39171SENEC Storage Box V1,V2 and V3 accidentially expose a manage…7.2
- CVE-2023-39172The affected devices transmit sensitive information unencryp…9.1
- CVE-2023-39173In JetBrains TeamCity before 2023.05.2 a token with limited …8.8
- CVE-2023-39174In JetBrains TeamCity before 2023.05.2 a ReDoS attack was po…7.5
- CVE-2023-39175In JetBrains TeamCity before 2023.05.2 reflected XSS via Git…6.1
- CVE-2023-39177Rejected reason: Duplicate of CVE-2023-52442.
- CVE-2023-39178Rejected reason: Duplicate of CVE-2023-52441.
- CVE-2023-39179A flaw was found within the handling of SMB2 read requests i…7.5
- CVE-2023-39180A flaw was found within the handling of SMB2_READ commands i…7.5
- CVE-2023-39181A vulnerability has been identified in Solid Edge SE2023 (Al…7.8
- CVE-2023-39182A vulnerability has been identified in Solid Edge SE2023 (Al…7.8
Are you affected by CVE-2023-39176?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST