#VU93151 Buffer overflow in Linux kernel - CVE-2024-35803

Vulnerability identifier: #VU93151

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-2024-35803

CWE-ID: CWE-119

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 memory corruption within the SYM_FUNC_START(), SYM_FUNC_START_LOCAL() and SYM_DATA_END() functions in arch/x86/boot/compressed/efi_mixed.S. 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/2149f8a56e2ed345c7a4d022a79f6b8fc53ae926
https://git.kernel.org/stable/c/930775060ca348b8665f60eef14b204172d14f31
https://git.kernel.org/stable/c/fba7ee7187581b5bc222003e73e2592b398bb06d
https://git.kernel.org/stable/c/725351c036452b7db5771a7bed783564bc4b99cc
https://git.kernel.org/stable/c/cefcd4fe2e3aaf792c14c9e56dab89e3d7a65d02

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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.