Vulnerability identifier: #VU90042

Vulnerability risk: Low

CVSSv3.1: 4.8 [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-2021-46944

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 imgu_fmt() function in drivers/staging/media/ipu3/ipu3-v4l2.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/ff792ae52005c85a2d829c153e08d99a356e007d
http://git.kernel.org/stable/c/517f6f570566a863c2422b843c8b7d099474f6a9
http://git.kernel.org/stable/c/14d0e99c3ef6b0648535a31bf2eaabb4eff97b9e
http://git.kernel.org/stable/c/74ba0adb5e983503b18a96121d965cad34ac7ce3
http://git.kernel.org/stable/c/3630901933afba1d16c462b04d569b7576339223

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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.