Use-after-free in Linux kernel pci driver

1) Use-after-free

EUVDB-ID: #VU96108

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-42302

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 pci_bus_max_d3cold_delay() and pci_bridge_wait_for_secondary_bus() functions in drivers/pci/pci.c. A local user can escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

External links

http://git.kernel.org/stable/c/f63df70b439bb8331358a306541893bf415bf1da
http://git.kernel.org/stable/c/2cc8973bdc4d6c928ebe38b88090a2cdfe81f42f
http://git.kernel.org/stable/c/b16f3ea1db47a6766a9f1169244cf1fc287a7c62
http://git.kernel.org/stable/c/11a1f4bc47362700fcbde717292158873fb847ed

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.