#VU102018 Use-after-free in Linux kernel - CVE-2024-56603

Vulnerability identifier: #VU102018

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-2024-56603

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 can_create() function in net/can/af_can.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/1fe625f12d090d69f3f084990c7e4c1ff94bfe5f
https://git.kernel.org/stable/c/5947c9ac08f0771ea8ed64186b0d52e9029cb6c0
https://git.kernel.org/stable/c/811a7ca7320c062e15d0f5b171fe6ad8592d1434
https://git.kernel.org/stable/c/884ae8bcee749be43a071d6ed2d89058dbd2425c
https://git.kernel.org/stable/c/8df832e6b945e1ba61467d7f1c9305e314ae92fe
https://git.kernel.org/stable/c/ce39b5576785bb3e66591145aad03d66bc3e778d
https://git.kernel.org/stable/c/db207d19adbac96058685f6257720906ad41d215

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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.