ksmbd: validate request buffer size in smb2_allocate_rsp_buf()
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.2epss 0.6%
exploitation probability
0.6%top 55% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: validate request buffer size in smb2_allocate_rsp_buf()
The response buffer should be allocated in smb2_allocate_rsp_buf
before validating request. But the fields in payload as well as smb2 header
is used in smb2_allocate_rsp_buf(). This patch add simple buffer size
validation to avoid potencial out-of-bounds in request buffer.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/17cf0c2794bdb6f39671265aa18aea5c22ee8c4ahttps://git.kernel.org/stable/c/21ff9d7d223c5c19cb4334009e4c0c83a2f4d674https://git.kernel.org/stable/c/2c27a64a2bc47d9bfc7c3cf8be14be53b1ee7cb6https://git.kernel.org/stable/c/5c20b242d4fed73a93591e48bfd9772e2322fb11https://git.kernel.org/stable/c/8f3d0bf1d0c62b539d54c5b9108a845cff619b99