#VU90184 Use-after-free in Linux kernel - CVE-2024-26996

Vulnerability identifier: #VU90184

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-2024-26996

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 ncm_set_alt() and ncm_disable() functions in drivers/usb/gadget/function/f_ncm.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/7f67c2020cb08499c400abf0fc32c65e4d9a09ca
https://git.kernel.org/stable/c/0588bbbd718a8130b98c54518f1e0b569ce60a93
https://git.kernel.org/stable/c/f356fd0cbd9c9cbd0854657a80d1608d0d732db3
https://git.kernel.org/stable/c/7250326cbb1f4f90391ac511a126b936cefb5bb7
https://git.kernel.org/stable/c/6334b8e4553cc69f51e383c9de545082213d785e

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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.