Vulnerability in Linux Kernel
CVE-2023-32254
A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the processing of SMB2_TREE_DISCONNECT commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to execute code in the context of the kernel.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.029 (86.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2023-32254 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Patch, Third Party Advisory, Issue Tracking)
- www.zerodayinitiative.com/advisories/ZDI-23-702/ (Patch, VDB Entry, Third Party Advisory)
- security.netapp.com/advisory/ntap-20230824-0004/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-32254?
- CVE-2023-32254 is a critical-severity vulnerability in Linux Kernel, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 9.8/10. Published 2023-07-10.
- How severe is CVE-2023-32254?
- Critical severity. CVSS v3 base score is 9.8 out of 10.