Vulnerability identifier: #VU97568

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-2024-46775

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 perform_link_training_with_retries() function in drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training.c, within the hubbub2_program_watermarks() function in drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubbub.c, within the dc_dmub_srv_cmd_run_list() and dc_dmub_srv_get_visual_confirm_color_cmd() functions in drivers/gpu/drm/amd/display/dc/dc_dmub_srv.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/5639a3048c7079803256374204ad55ec52cd0b49
http://git.kernel.org/stable/c/673f816b9e1e92d1f70e1bf5f21b531e0ff9ad6c

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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.