#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: 4.19 - 4.19.322, 5.4 - 5.4.284, 5.10 - 5.10.227, 5.15 - 5.15.168, 6.1 - 6.1.113, 6.6 - 6.6.57, 6.11 - 6.11.4

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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
https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.323
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.228
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.169
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.285
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.114
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.5
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.58

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?