#VU104534 Out-of-bounds read in Linux kernel - CVE-2022-49145

Vulnerability identifier: #VU104534

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-49145

CWE-ID: CWE-125

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

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

The vulnerability exists due to an out-of-bounds read error within the acpi_cppc_processor_probe() function in drivers/acpi/cppc_acpi.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

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External links
https://git.kernel.org/stable/c/28d5387c1994f5e1e0d41b30a1f3dd6e1f609252
https://git.kernel.org/stable/c/40d8abf364bcab23bc715a9221a3c8623956257b
https://git.kernel.org/stable/c/97b5593fd1b182b3fdb180b6bbe64ec09669988b
https://git.kernel.org/stable/c/b3f15609ffa521de12244cd6af24002030dda3f5
https://git.kernel.org/stable/c/b80b19b32a432c9eee1cd200ef7aaddf608f54d1
https://git.kernel.org/stable/c/cb249f8c00f40dba83b7da8207ac14ca46e9ec9e
https://git.kernel.org/stable/c/d208ea44e25b31db5a4d5e8c31df51787a3e9303
https://git.kernel.org/stable/c/d7339f2a3938fb56b5f28d53f5345900b5fa0e74
https://git.kernel.org/stable/c/e5b681822cac1f8093759b02e16c06b2c64b6788

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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.