#VU104871 Resource management error in Linux kernel - CVE-2022-49357

Vulnerability identifier: #VU104871

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-2022-49357

CWE-ID: CWE-399

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 resource management error within the UEFI_QUIRK_SKIP_CERT() and load_uefi_certs() functions in security/integrity/platform_certs/load_uefi.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/155ca952c7ca19aa32ecfb7373a32bbc2e1ec6eb
https://git.kernel.org/stable/c/1f7264f0510f519b4e4f575a8f0579ea65e7592e
https://git.kernel.org/stable/c/65237307f88f5200782ae7f243bdd385e37cde5d
https://git.kernel.org/stable/c/b1cda6dd2c44771f042d65f0d17bec322ef99a0a
https://git.kernel.org/stable/c/b34786b25d75f9c119696e6bdf3827f54ae3601b
https://git.kernel.org/stable/c/c072cab98bac11f6ef9db640fb51834d9552e2e6

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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.