#VU99824 Improper locking in Linux kernel - CVE-2024-50099

Vulnerability identifier: #VU99824

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-2024-50099

CWE-ID: CWE-667

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 locking within the arm_probe_decode_insn() and arm_kprobe_decode_insn() functions in arch/arm64/kernel/probes/decode-insn.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

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External links
https://git.kernel.org/stable/c/3728b4eb27910ffedd173018279a970705f2e03a
https://git.kernel.org/stable/c/ad4bc35a6d22e9ff9b67d0d0c38bce654232f195
https://git.kernel.org/stable/c/bae792617a7e911477f67a3aff850ad4ddf51572
https://git.kernel.org/stable/c/9f1e7735474e7457a4d919a517900e46868ae5f6
https://git.kernel.org/stable/c/20cde998315a3d2df08e26079a3ea7501abce6db
https://git.kernel.org/stable/c/acc450aa07099d071b18174c22a1119c57da8227

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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.