#VU104312 Memory leak in Linux kernel - CVE-2022-49566

Vulnerability identifier: #VU104312

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-2022-49566

CWE-ID: CWE-401

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 memory leak within the qat_rsa_exit_tfm() function in drivers/crypto/qat/qat_common/qat_asym_algs.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/0f967fdc09955221a1951a279481b0bf4d359941
https://git.kernel.org/stable/c/80a52e1ee7757b742f96bfb0d58f0c14eb6583d0
https://git.kernel.org/stable/c/a843925e0287eebb4aa808666bf22c664dfe4c53

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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.