Out-of-bounds read in Linux kernel riscv kvm

1) Out-of-bounds read

EUVDB-ID: #VU102091

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-2024-53228

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to an out-of-bounds read error within the kvm_riscv_vcpu_sbi_init() function in arch/riscv/kvm/vcpu_sbi.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.12 - 6.12.1

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:6.12:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.12.1:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/332fa4a802b16ccb727199da685294f85f9880cb
https://git.kernel.org/stable/c/3c49e1084a5df99807fc43dd318c491e6cbaa168
https://git.kernel.org/stable/c/b1af648f0d610665c956ea4604d9f797e5c7e991
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.2

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.