#VU104546 NULL pointer dereference in Linux kernel - CVE-2022-49262

Vulnerability identifier: #VU104546

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-2022-49262

CWE-ID: CWE-476

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 NULL pointer dereference within the cpt_register_algs() function in drivers/crypto/marvell/octeontx2/otx2_cptvf_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/2d841af23ae8f398c85dd1ff2dc24b5ec8ba4569
https://git.kernel.org/stable/c/a1bf728f3388ac3a2c2dffa57e25622e90b9f6f2
https://git.kernel.org/stable/c/a462214866eebbca87e13ff6d73092b1c4895624
https://git.kernel.org/stable/c/e6374086f249295121384bfaa7cdcc8d461146f0

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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.