Use-after-free in Linux kernel mm

1) Use-after-free

EUVDB-ID: #VU97498

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 - Use After Free

Exploit availability: No

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 - 6.10.9

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:6.10:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.10.1:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.10.2:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.10.3:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.10.4:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.10.5:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.10.6:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.10.7:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.10.8:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.10.9:*:*:*:*:*:*:*

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

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.