CVE-2023-52442
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, service disruption.
- Exploit odds
- 29.6% chance of exploitation in the next 30 days (EPSS). Higher than most.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 29.6% in the next 30 days (EPSS).
- Severity: 9.1 CRITICAL (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 29.6% · EPSS, next 30 days
- Record status
- Modified
Affected
- Linux Kernel < 5.15.145
- Linux Kernel < 6.1.53
- Linux Kernel < 6.4.16
- Linux Kernel 6.5
Attack profile CVSS 3.1 · 9.1
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-52442.md and follow it. Check whether this project is affected by CVE-2023-52442. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/017d85c94f02090a87f4a473dbe0d6ee0da72693
- https://git.kernel.org/stable/c/3df0411e132ee74a87aa13142dfd2b190275332e
- https://git.kernel.org/stable/c/4c2b350b2e269e3fd17bbfa42de1b42775b777ac
- https://git.kernel.org/stable/c/becb5191d1d5fdfca0198a2e37457bbbf4fe266f
- https://git.kernel.org/stable/c/017d85c94f02090a87f4a473dbe0d6ee0da72693
- https://git.kernel.org/stable/c/3df0411e132ee74a87aa13142dfd2b190275332e
- https://git.kernel.org/stable/c/4c2b350b2e269e3fd17bbfa42de1b42775b777ac
- https://git.kernel.org/stable/c/becb5191d1d5fdfca0198a2e37457bbbf4fe266f
References
- https://git.kernel.org/stable/c/017d85c94f02090a87f4a473dbe0d6ee0da72693
- https://git.kernel.org/stable/c/3df0411e132ee74a87aa13142dfd2b190275332e
- https://git.kernel.org/stable/c/4c2b350b2e269e3fd17bbfa42de1b42775b777ac
- https://git.kernel.org/stable/c/becb5191d1d5fdfca0198a2e37457bbbf4fe266f
- https://git.kernel.org/stable/c/017d85c94f02090a87f4a473dbe0d6ee0da72693
- https://git.kernel.org/stable/c/3df0411e132ee74a87aa13142dfd2b190275332e
- https://git.kernel.org/stable/c/4c2b350b2e269e3fd17bbfa42de1b42775b777ac
- https://git.kernel.org/stable/c/becb5191d1d5fdfca0198a2e37457bbbf4fe266f