CVE-2023-39180

low-risk
Published 2024-11-18

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.

Do I need to act?

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0.06% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.0/10 Medium
NETWORK / HIGH complexity

Affected Products (1)

Affected Vendors

Linux

References (3)

Third Party Advisory https://access.redhat.com/security/cve/CVE-2023-39180
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=2326531
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-24-589/
18
/ 100
low-risk
Severity 13/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal