#VU94139 Input validation error in Linux kernel - CVE-2024-26677

Vulnerability identifier: #VU94139

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-2024-26677

CWE-ID: CWE-20

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 input validation within the rxrpc_propose_delay_ACK(), rxrpc_send_initial_ping() and rxrpc_input_call_event() functions in net/rxrpc/call_event.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/200cb50b9e154434470c8969d32474d38475acc2
https://git.kernel.org/stable/c/63719f490e6a89896e9a463d2b45e8203eab23ae
https://git.kernel.org/stable/c/e7870cf13d20f56bfc19f9c3e89707c69cf104ef

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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.