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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L
fedoraCNA
4 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L
CISA-ADPADP
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 26%
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
not-affected
bullseye (security)
5.10.226-1
fixed
bookworm
6.1.115-1
fixed
bookworm (security)
6.1.119-1
fixed
sid
6.12.6-1
fixed
trixie
6.12.6-1
fixed
Common Weakness Enumeration
References
https://access.redhat.com/security/cve/CVE-2023-39180
https://bugzilla.redhat.com/show_bug.cgi?id=2326531
https://www.zerodayinitiative.com/advisories/ZDI-24-589/