#VU97498 Use-after-free in Linux kernel - CVE-2024-46790

Vulnerability identifier: #VU97498

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-2024-46790

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 free_pages_prepare() function in mm/page_alloc.c. A local user can escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.10, 6.10.1, 6.10.2, 6.10.3, 6.10.4, 6.10.5, 6.10.6, 6.10.7, 6.10.8, 6.10.9

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External links
https://git.kernel.org/stable/c/16ad36c8e66a26626e7d0224100b433483a2acef
https://git.kernel.org/stable/c/5e9784e997620af7c1399029282f5d6964b41942
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.10
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11

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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.