Improper locking in Linux kernel phy freescale driver

1) Improper locking

EUVDB-ID: #VU91454

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-2023-52505

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

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

The vulnerability exists due to improper locking within the lynx_28g_set_mode() and lynx_28g_probe() functions in drivers/phy/freescale/phy-fsl-lynx-28g.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/6f901f8448c6b25ed843796b114471d2a3fc5dfb
http://git.kernel.org/stable/c/c2d7c79898b427d263c64a4841987eec131f2d4e
http://git.kernel.org/stable/c/139ad1143151a07be93bf741d4ea7c89e59f89ce

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.