#VU96541 Input validation error in Linux kernel - CVE-2024-43897

Vulnerability identifier: #VU96541

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-2024-43897

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 __udp_gso_segment() function in net/ipv4/udp_offload.c, within the tcp_gso_segment() function in net/ipv4/tcp_offload.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/6772c4868a8e7ad5305957cdb834ce881793acb7
https://git.kernel.org/stable/c/2edbb3e8838c672cd7e247e47989df9d03fc6668
https://git.kernel.org/stable/c/89add40066f9ed9abe5f7f886fe5789ff7e0c50e

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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.