CVE-2023-4134 Kernel: cyttsp4_core: use-after-free in cyttsp4_watchdog_work()

What is CVE-2023-4134?

CVE-2023-4134 is a medium-severity use after free vulnerability in Fedoraproject Fedora, published on 14 Nov 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A use-after-free vulnerability was found in the cyttsp4_core driver in the Linux kernel. This issue occurs in the device cleanup routine due to a possible rearming of the watchdog_timer from the workqueue. This could allow a local user to crash the system, causing a denial of service.

Weakness: CWE-416

Which versions are affected by CVE-2023-4134?

It affects 2 products.

Products include Fedoraproject Fedora, Linux kernel.

How do I fix CVE-2023-4134?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2023-4134 being exploited?

There is no known exploitation of CVE-2023-4134 in the wild and no public exploit code.

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All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-53227, DEBIAN-CVE-2023-4134, GHSA-hpvm-q8v2-j94r, ROOT-OS-DEBIAN-11-CVE-2023-4134, ROOT-OS-DEBIAN-12-CVE-2023-4134, UBUNTU-CVE-2023-4134 and 1 more.