#VU95077 Incorrect calculation in Linux kernel - CVE-2024-42067

Vulnerability identifier: #VU95077

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-2024-42067

CWE-ID: CWE-682

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 incorrect calculation within the bpf_flush_icache() function in arch/sparc/net/bpf_jit_comp_64.c, within the print_fn_code() function in arch/s390/net/bpf_jit_comp.c, within the bpf_flush_icache() function in arch/parisc/net/bpf_jit_core.c, within the bpf_int_jit_compile() function in arch/mips/net/bpf_jit_comp.c, within the flush_icache_range() and bpf_jit_binary_free() functions in arch/loongarch/net/bpf_jit.c, within the bpf_int_jit_compile() and bpf_jit_prog_release_other() functions in arch/arm/net/bpf_jit_32.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/08f6c05feb1db21653e98ca84ea04ca032d014c7
https://git.kernel.org/stable/c/9fef36cad60d4226f9d06953cd56d1d2f9119730
https://git.kernel.org/stable/c/044da7ae7afd4ef60806d73654a2e6a79aa4ed7a
https://git.kernel.org/stable/c/e60adf513275c3a38e5cb67f7fd12387e43a3ff5

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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.