#VU99806 Use-after-free in Linux kernel - CVE-2024-50125

Vulnerability identifier: #VU99806

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-2024-50125

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 SCO_CONN_TIMEOUT(), sco_sock_timeout() and sco_conn_del() functions in net/bluetooth/sco.c, within the bt_sock_unlink() function in net/bluetooth/af_bluetooth.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/9ddda5d967e84796e7df1b54a55f36b4b9f21079
https://git.kernel.org/stable/c/d30803f6a972b5b9e26d1d43b583c7ec151de04b
https://git.kernel.org/stable/c/80b05fbfa998480fb3d5299d93eab946f51e9c36
https://git.kernel.org/stable/c/1bf4470a3939c678fb822073e9ea77a0560bc6bb

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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.