#VU102071 Use-after-free in Linux kernel - CVE-2024-56538

Vulnerability identifier: #VU102071

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-2024-56538

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 zynqmp_dpsub_drm_cleanup() function in drivers/gpu/drm/xlnx/zynqmp_kms.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/2e07c88914fc5289c21820b1aa94f058feb38197
https://git.kernel.org/stable/c/4fb97432e28a7e136b2d76135d50e988ada8e1af
https://git.kernel.org/stable/c/692f52aedccbf79b212a1e14e3735192b4c24a7d
https://git.kernel.org/stable/c/a17b9afe58c474657449cf87e238b1788200576b

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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.