#VU100830 Use-after-free in Linux kernel - CVE-2024-53095

Vulnerability identifier: #VU100830

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-2024-53095

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 clean_demultiplex_info(), cifs_put_tcp_session() and generic_ip_connect() functions in fs/smb/client/connect.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/c7f9282fc27fc36dbaffc8527c723de264a132f8
https://git.kernel.org/stable/c/e8c71494181153a134c96da28766a57bd1eac8cb
https://git.kernel.org/stable/c/ef7134c7fc48e1441b398e55a862232868a6f0a7

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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.