#VU102016 Use-after-free in Linux kernel - CVE-2024-56600

Vulnerability identifier: #VU102016

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-56600

CWE-ID: CWE-416

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 escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the htons() function in net/ipv6/af_inet6.c. A local user can escalate privileges on the system.

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/276a473c956fb55a6f3affa9ff232e10fffa7b43
https://git.kernel.org/stable/c/35360255ca30776dee34d9fa764cffa24d0a5f65
https://git.kernel.org/stable/c/706b07b7b37f886423846cb38919132090bc40da
https://git.kernel.org/stable/c/79e16a0d339532ea832d85798eb036fc4f9e0cea
https://git.kernel.org/stable/c/9df99c395d0f55fb444ef39f4d6f194ca437d884
https://git.kernel.org/stable/c/f2709d1271cfdf55c670ab5c5982139ab627ddc7
https://git.kernel.org/stable/c/f44fceb71d72d29fb00e0ac84cdf9c081b03cd06

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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.