CVE-2024-26936
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.60%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.60% probability · 47th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/17cf0c2794bdb6f39671265aa18aea5c22ee8c4aPatch
- https://git.kernel.org/stable/c/21ff9d7d223c5c19cb4334009e4c0c83a2f4d674Patch
- https://git.kernel.org/stable/c/2c27a64a2bc47d9bfc7c3cf8be14be53b1ee7cb6Patch
- https://git.kernel.org/stable/c/5c20b242d4fed73a93591e48bfd9772e2322fb11Patch
- https://git.kernel.org/stable/c/8f3d0bf1d0c62b539d54c5b9108a845cff619b99Patch
- https://git.kernel.org/stable/c/17cf0c2794bdb6f39671265aa18aea5c22ee8c4aPatch
- https://git.kernel.org/stable/c/21ff9d7d223c5c19cb4334009e4c0c83a2f4d674Patch
- https://git.kernel.org/stable/c/2c27a64a2bc47d9bfc7c3cf8be14be53b1ee7cb6Patch
- https://git.kernel.org/stable/c/5c20b242d4fed73a93591e48bfd9772e2322fb11Patch
- https://git.kernel.org/stable/c/8f3d0bf1d0c62b539d54c5b9108a845cff619b99Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.