#VU104239 Memory leak in Linux kernel - CVE-2022-49283

Vulnerability identifier: #VU104239

Vulnerability risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-49283

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 sysfb_create_simplefb() function in drivers/firmware/sysfb_simplefb.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/202c08914ba50dd324e42d5ad99535a89f242560
https://git.kernel.org/stable/c/b3e38f939ab4d0d86f56bff3362c3f88c4b2ad32
https://git.kernel.org/stable/c/bb7fcbe80a013dc883181dc818c407d38558f76c
https://git.kernel.org/stable/c/fed4df558b8cdb6f3beea38a7c977f118f082b0d

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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.