CVE-2023-52442
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate session id and tree id in compound request `smb2_get_msg()` in smb2_get_ksmbd_tcon() and smb2_check_user_session() will always return the first request smb2 header in a…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 29.6%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate session id and tree id in compound request `smb2_get_msg()` in smb2_get_ksmbd_tcon() and smb2_check_user_session() will always return the first request smb2 header in a compound request. if `SMB2_TREE_CONNECT_HE` is the first command in compound request, will return 0, i.e. The tree id check is skipped. This patch use ksmbd_req_buf_next() to get current command in compound.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 29.64% probability · 98th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/017d85c94f02090a87f4a473dbe0d6ee0da72693Patch
- https://git.kernel.org/stable/c/3df0411e132ee74a87aa13142dfd2b190275332ePatch
- https://git.kernel.org/stable/c/4c2b350b2e269e3fd17bbfa42de1b42775b777acPatch
- https://git.kernel.org/stable/c/becb5191d1d5fdfca0198a2e37457bbbf4fe266fPatch
- https://git.kernel.org/stable/c/017d85c94f02090a87f4a473dbe0d6ee0da72693Patch
- https://git.kernel.org/stable/c/3df0411e132ee74a87aa13142dfd2b190275332ePatch
- https://git.kernel.org/stable/c/4c2b350b2e269e3fd17bbfa42de1b42775b777acPatch
- https://git.kernel.org/stable/c/becb5191d1d5fdfca0198a2e37457bbbf4fe266fPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.