CVE-2023-52442: ksmbd: validate session id and tree id in compound request
First published: Wed Feb 21 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=5.15<5.15.145 | |
| Linux Linux kernel | >=5.16<6.1.53 | |
| Linux Linux kernel | >=6.2<6.4.16 | |
| Linux Linux kernel | =6.5-rc1 | |
| Linux Linux kernel | =6.5-rc2 | |
| Linux Linux kernel | =6.5-rc3 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.6-1 6.12.9-1 |
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Reference Links
- 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
- http://www.openwall.com/lists/oss-security/2024/03/18/2
- https://launchpad.net/bugs/cve/CVE-2023-52442
- https://git.kernel.org/linus/3df0411e132ee74a87aa13142dfd2b190275332e
- https://security-tracker.debian.org/tracker/CVE-2023-52442
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52442
- https://nvd.nist.gov/vuln/detail/CVE-2023-52442
- https://ubuntu.com/security/CVE-2023-52442
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