Out-of-bounds Read in Linux Kernel
CVE-2023-39180
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.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.014 (69.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L.
Affected products
Weakness classification (CWE)
References
- patrick@puiterwijk.org (x_refsource_REDHAT, Third Party Advisory, vdb-entry)
- patrick@puiterwijk.org (x_refsource_REDHAT, issue-tracking, Third Party Advisory, Issue Tracking)
- patrick@puiterwijk.org (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-39180?
- CVE-2023-39180 is a medium-severity vulnerability in Linux Kernel, classified under Uncontrolled Resource Consumption. CVSS score: 4.0/10. Published 2024-11-18.
- How severe is CVE-2023-39180?
- Medium severity. CVSS v3 base score is 4.0 out of 10.