#VU97778 Use-after-free in Linux kernel - CVE-2024-46831

Vulnerability identifier: #VU97778

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-2024-46831

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 vcap_api_encode_rule_test() function in drivers/net/ethernet/microchip/vcap/vcap_api_kunit.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/b0804c286ccfcf5f5c004d5bf8a54c0508b5e86b
https://git.kernel.org/stable/c/f7fe95f40c85311c98913fe6ae2c56adb7f767a7
https://git.kernel.org/stable/c/a3c1e45156ad39f225cd7ddae0f81230a3b1e657

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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.