CVE-2023-32255
published 2025-08-02CVE-2023-32255: A flaw was found in the Linux kernel's ksmbd component. A memory leak can occur if a client sends a session setup request with an unknown NTLMSSP message type…
PriorityP425medium5.3CVSS 3.1
AVNACLPRNUINSUCNINAL
EPSS
0.47%
38.5th percentile
A flaw was found in the Linux kernel's ksmbd component. A memory leak can occur if a client sends a session setup request with an unknown NTLMSSP message type, potentially leading to resource exhaustion.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.37-1 (bookworm) | linux 6.1.37-1 (bookworm) |
| linux | linux_kernel | >= 0 < 6.1.37-1 | 6.1.37-1 |
| linux | linux_kernel | >= 0 < 6.3.7-1 | 6.3.7-1 |
| linux | linux_kernel | >= 0 < 6.3.7-1 | 6.3.7-1 |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
osv5.3MEDIUM
vendor_debian5.3MEDIUM
vendor_redhat5.3MEDIUM
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Red Hat
kernel: Memory leak via ksmbd session setup request with unknown NTLMSSP message type
vendor_redhat·2023-05-17·CVSS 5.3
CVE-2023-32255 [MEDIUM] CWE-772 kernel: Memory leak via ksmbd session setup request with unknown NTLMSSP message type
kernel: Memory leak via ksmbd session setup request with unknown NTLMSSP message type
A flaw was found in the Linux kernel's ksmbd component. A memory leak can occur if a client sends a session setup request with an unknown NTLMSSP message type, potentially leading to resource exhaustion.
A flaw was found in the Linux kernel's ksmbd component. A memory leak can occur if a client sends a session setup request with an unknown NTLMSSP message type, potentially leading to resource exhaustion.
Statement: The ksmbd kernel component is not shipped in any Red Hat Products.
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise L
Debian
CVE-2023-32255: linux - A flaw was found in the Linux kernel's ksmbd component. A memory leak can occur ...
vendor_debian·2023·CVSS 5.3
CVE-2023-32255 [MEDIUM] CVE-2023-32255: linux - A flaw was found in the Linux kernel's ksmbd component. A memory leak can occur ...
A flaw was found in the Linux kernel's ksmbd component. A memory leak can occur if a client sends a session setup request with an unknown NTLMSSP message type, potentially leading to resource exhaustion.
Scope: local
bookworm: resolved (fixed in 6.1.37-1)
bullseye: open
forky: resolved (fixed in 6.3.7-1)
sid: resolved (fixed in 6.3.7-1)
trixie: resolved (fixed in 6.3.7-1)
GHSA
GHSA-3hjh-cjx8-8c83: A flaw was found in the Linux kernel's ksmbd component
ghsa_unreviewed·2025-08-03
CVE-2023-32255 [MEDIUM] CWE-772 GHSA-3hjh-cjx8-8c83: A flaw was found in the Linux kernel's ksmbd component
A flaw was found in the Linux kernel's ksmbd component. A memory leak can occur if a client sends a session setup request with an unknown NTLMSSP message type, potentially leading to resource exhaustion.
OSV
CVE-2023-32255: A flaw was found in the Linux kernel's ksmbd component
osv·2025-08-02·CVSS 5.3
CVE-2023-32255 [MEDIUM] CVE-2023-32255: A flaw was found in the Linux kernel's ksmbd component
A flaw was found in the Linux kernel's ksmbd component. A memory leak can occur if a client sends a session setup request with an unknown NTLMSSP message type, potentially leading to resource exhaustion.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-08-02
Published