Double free in Linux kernel vhost driver

1) Double free

EUVDB-ID: #VU90888

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-2023-52795

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

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

The vulnerability exists due to a double free error within the vhost_vdpa_probe() function in drivers/vhost/vdpa.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/c0f8b8fb7df9d1a38652eb5aa817afccd3c56111
http://git.kernel.org/stable/c/ae8ea4e200675a940c365b496ef8e3fb4123601c
http://git.kernel.org/stable/c/bf04132cd64ccde4e9e9765d489c83fe83c09b7f
http://git.kernel.org/stable/c/e07754e0a1ea2d63fb29574253d1fd7405607343

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.