Improper error handling in Linux kernel net phy driver

1) Improper error handling

EUVDB-ID: #VU92056

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-2024-35945

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

Description

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

The vulnerability exists due to improper error handling within the phy_sfp_probe(), phy_attach_direct() and phy_get_internal_delay() functions in drivers/net/phy/phy_device.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

CPE2.3

External links

http://git.kernel.org/stable/c/7a71f61ebf95cedd3f245db6da397822971d8db5
http://git.kernel.org/stable/c/3419ee39e3d3162ab2ec9942bb537613ed5b6311
http://git.kernel.org/stable/c/61c81872815f46006982bb80460c0c80a949b35b

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.