#VU97813 Improper error handling in Linux kernel - CVE-2024-46809

Vulnerability identifier: #VU97813

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-2024-46809

CWE-ID: CWE-388

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 error handling within the get_ss_info_v3_1(), get_ss_info_from_internal_ss_info_tbl_V2_1(), get_ss_info_from_ss_info_table(), get_ss_entry_number_from_ss_info_tbl(), get_ss_entry_number_from_internal_ss_info_tbl_v2_1() and get_ss_entry_number_from_internal_ss_info_tbl_V3_1() functions in drivers/gpu/drm/amd/display/dc/bios/bios_parser.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

---

External links
https://git.kernel.org/stable/c/e50bec62acaeec03afc6fa5dfb2426e52d049cf5
https://git.kernel.org/stable/c/e46b70a7cfed71cb84e985c785c39c16df5c28cb
https://git.kernel.org/stable/c/8b0ddf19cca2a352b2a7e01d99d3ba949a99c84c

---

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.