#VU102271 Input validation error in Linux kernel - CVE-2024-56727

Vulnerability identifier: #VU102271

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-2024-56727

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 otx2_alloc_mcam_entries() and otx2_mcam_entry_init() functions in drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.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/8c9f8b35dc3d4ad8053a72bc0c5a7843591f6b75
https://git.kernel.org/stable/c/a479b3d7586e6f77f8337bbcac980eaf2d0a4029
https://git.kernel.org/stable/c/bd3110bc102ab6292656b8118be819faa0de8dd0
https://git.kernel.org/stable/c/c4eae7bac880edd88aaed6a8ec2997fa85e259c7
https://git.kernel.org/stable/c/e5e60f17d2462ef5c13db4d1a54eef5778fd2295

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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.