Buffer overflow in Linux kernel block driver

1) Buffer overflow

EUVDB-ID: #VU93622

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-2023-52762

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to memory corruption within the virtblk_probe() function in drivers/block/virtio_blk.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/72775cad7f572bb2501f9ea609e1d20e68f0b38b
http://git.kernel.org/stable/c/472bd4787406bef2e8b41ee4c74d960a06a49a48
http://git.kernel.org/stable/c/017278f141141367f7d14b203e930b45b6ffffb9
http://git.kernel.org/stable/c/d667fe301dcbcb12d1d6494fc4b8abee2cb75d90
http://git.kernel.org/stable/c/fafb51a67fb883eb2dde352539df939a251851be

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.