Resource management error in Linux kernel riscv kernel

1) Resource management error

EUVDB-ID: #VU93268

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-2024-35873

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to resource management error within the __restore_v_state() function in arch/riscv/kernel/signal.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.8 - 6.8.4

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:6.8:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.8:rc1:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.8:rc2:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.8:rc5:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.8.1:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.8.2:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.8.3:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.8.4:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/5b16d904e910183181b9d90efa957c787a8ac91b
https://git.kernel.org/stable/c/c27fa53b858b4ee6552a719aa599c250cf98a586
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.5

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.