CVE-2019-19769 Use after free in n/a

Medium 6.7 Published Updated

A use-after-free vulnerability in the Linux kernel's perf_trace_lock_acquire function allows attackers to potentially execute code or escalate privileges.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2019-19769?

CVE-2019-19769 is a medium-severity use after free vulnerability in Fedoraproject Fedora, published on 12 Dec 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel 5.3.10, there is a use-after-free (read) in the perf_trace_lock_acquire function (related to include/trace/events/lock.h).

Weakness: CWE-416

Which versions are affected by CVE-2019-19769?

It affects 2 products.

Products include Fedoraproject Fedora, Linux kernel.

How do I fix CVE-2019-19769?

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-2019-19769 being exploited?

There is no known exploitation of CVE-2019-19769 in the wild and no public exploit code.

All Fedoraproject Fedora vulnerabilities

Sources

Also known as A-150693748, ASB-A-150693748, DEBIAN-CVE-2019-19769, GHSA-c798-7c9v-6jgh, UBUNTU-CVE-2019-19769.

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