#VU100612 Use-after-free in Linux kernel - CVE-2024-50264

Vulnerability identifier: #VU100612

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-2024-50264

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 virtio_transport_destruct() function in net/vmw_vsock/virtio_transport_common.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/5f092a4271f6dccf88fe0d132475a17b69ef71df
https://git.kernel.org/stable/c/fd8ae346692a56b4437d626c5460c7104980f389
https://git.kernel.org/stable/c/eb1bdcb7dfc30b24495ee4c5533af0ed135cb5f1
https://git.kernel.org/stable/c/2a6a4e69f255b7aed17f93995691ab4f0d3c2203
https://git.kernel.org/stable/c/44d29897eafd0e1196453d3003a4d5e0b968eeab
https://git.kernel.org/stable/c/b110196fec44fe966952004bd426967c2a8fd358
https://git.kernel.org/stable/c/5f970935d09934222fdef3d0e20c648ea7a963c1
https://git.kernel.org/stable/c/6ca575374dd9a507cdd16dfa0e78c2e9e20bd05f

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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.