Information disclosure in Linux kernel brcmstb pm driver

1) Information disclosure

EUVDB-ID: #VU91352

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-2022-48693

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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

The vulnerability exists due to information disclosure within the brcmstb_pm_probe() function in drivers/soc/bcm/brcmstb/pm/pm-arm.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/0284b4e6dec6088a41607aa3f42bf51edff01883
http://git.kernel.org/stable/c/57b2897ec3ffe4cbe018446be6d04432919dca6b
http://git.kernel.org/stable/c/6dc0251638a4a1a998506dbd4627f8317e907558
http://git.kernel.org/stable/c/43245c77d9efd8c9eb91bf225d07954dcf32204d
http://git.kernel.org/stable/c/653500b400d5576940b7429690f7197199ddcc82
http://git.kernel.org/stable/c/1085f5080647f0c9f357c270a537869191f7f2a1

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.