CVE-2025-38562 — NULL Pointer Dereference in Linux
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 96.38%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedAug 19
Latest updateMar 25
Description
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix null pointer dereference error in generate_encryptionkey
If client send two session setups with krb5 authenticate to ksmbd,
null pointer dereference error in generate_encryptionkey could happen.
sess->Preauth_HashValue is set to NULL if session is valid.
So this patch skip generate encryption key if session is valid.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages3 packages
▶CVEListV5linux/linux0626e6641f6b467447c81dd7678a69c66f7746cf — 96a82e19434a2522525baab59c33332658bc7653+6
Also affects: Debian Linux 11.0
Patches
🔴Vulnerability Details
3GHSA▶
GHSA-3qv5-2654-5g25: In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix null pointer dereference error in generate_encryptionkey
If client se↗2025-08-19
OSV▶
CVE-2025-38562: In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference error in generate_encryptionkey If client send↗2025-08-19