CVE-2019-19778 Memory corruption in n/a

High 8.8 Published Updated

A heap-based buffer over-read in libsixel allows attackers to cause denial of service or disclose sensitive memory contents via crafted Sixel images.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2019-19778?

CVE-2019-19778 is a high-severity memory corruption vulnerability in n/a, published on 13 Dec 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An issue was discovered in libsixel 1.8.2. There is a heap-based buffer over-read in the function load_sixel at loader.c.

Weakness: CWE-125

Which versions are affected by CVE-2019-19778?

It affects 1 product.

Products include Saitoha Libsixel.

How do I fix CVE-2019-19778?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2019-19778 being exploited?

There is no known exploitation of CVE-2019-19778 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2019-19778, GHSA-72pv-4f7x-ghhf, UBUNTU-CVE-2019-19778.

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