Vulnerability identifier: #VU86812

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-26592

CWE-ID: CWE-416

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a race condition when handling TCP connect and disconnect events within the ksmbd_tcp_new_connection() function in ksmbd. A remote non-authenticated attacker can trigger a use-after-free error and crash the kernel or execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel:

---

External links
http://git.kernel.org/stable/c/380965e48e9c32ee4263c023e1d830ea7e462ed1
http://git.kernel.org/stable/c/24290ba94cd0136e417283b0dbf8fcdabcf62111
http://git.kernel.org/stable/c/69d54650b751532d1e1613a4fb433e591aeef126
http://git.kernel.org/stable/c/38d20c62903d669693a1869aa68c4dd5674e2544
http://git.kernel.org/stable/c/999daf367b924fdf14e9d83e034ee0f86bc17ec6
http://www.zerodayinitiative.com/advisories/ZDI-24-195/

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.