#VU93070 Use-after-free in Linux kernel - CVE-2024-38629

Vulnerability identifier: #VU93070

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-2024-38629

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 idxd_wq_del_cdev() function in drivers/dma/idxd/cdev.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/9eb15f24a0b9b017b39cde8b8c07243676b63687
https://git.kernel.org/stable/c/15edb906211bf53e7b5574f7326ab734d6bff4f9
https://git.kernel.org/stable/c/76e43fa6a456787bad31b8d0daeabda27351a480

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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.