Improper error handling in Linux kernel s390 kernel

1) Improper error handling

EUVDB-ID: #VU96299

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-2024-43865

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

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 load_fpu_state() function in arch/s390/kernel/fpu.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.10 - 6.10.3

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:6.10:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.10.1:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.10.2:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.10.3:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/494b14138201f07343e5488db6360c828fcc8cf6
https://git.kernel.org/stable/c/4734406c39238cbeafe66f0060084caa3247ff53
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.4
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11

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.