CVE-2020-0427 Use after free in Android

Medium 5.5 Published Updated

A use-after-free vulnerability in the Android kernel allows local attackers to read sensitive memory without user interaction or elevated privileges.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2020-0427?

CVE-2020-0427 is a medium-severity use after free vulnerability in Debian Debian Linux, published on 17 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In create_pinctrl of core.c, there is a possible out of bounds read due to a use after free. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-140550171

Weakness: CWE-416, CWE-125

Which versions are affected by CVE-2020-0427?

It affects 4 products.

Products include Debian Debian Linux, Google Android, Opensuse Leap, Starwindsoftware Starwind Virtual San.

How do I fix CVE-2020-0427?

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-2020-0427 being exploited?

There is no known exploitation of CVE-2020-0427 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2020-0427, GHSA-cmm7-9576-wh39, UBUNTU-CVE-2020-0427.

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