Vulnerability identifier: #VU99217

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/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-2022-48977

CWE-ID: CWE-20

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 improper input validation within the can_rcv() and canfd_rcv() functions in net/can/af_can.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel:

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External links
http://git.kernel.org/stable/c/3982652957e8d79ac32efcb725450580650a8644
http://git.kernel.org/stable/c/c42221efb1159d6a3c89e96685ee38acdce86b6f
http://git.kernel.org/stable/c/c142cba37de29f740a3852f01f59876af8ae462a
http://git.kernel.org/stable/c/fcc63f2f7ee3038d53216edd0d8291e57c752557
http://git.kernel.org/stable/c/0acc442309a0a1b01bcdaa135e56e6398a49439c

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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.