Out-of-bounds read in Linux kernel ksmbd

1) Out-of-bounds read

EUVDB-ID: #VU90341

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-26608

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to an out-of-bounds read error within the handle_unsupported_event() and handle_generic_event() functions in fs/ksmbd/transport_ipc.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

External links

http://git.kernel.org/stable/c/aaa1f1a2ee80888c12ae2783f3a0be10e14067c5
http://git.kernel.org/stable/c/2c939c74ef0b74e99b92e32edc2a59f9b9ca3d5a
http://git.kernel.org/stable/c/9863a53100f47652755545c2bd43e14a1855104d
http://git.kernel.org/stable/c/6993328a4cd62a24df254b587c0796a4a1eecc95
http://git.kernel.org/stable/c/ebeae8adf89d9a82359f6659b1663d09beec2faa

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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