CVE-2018-3973 Memory corruption in ACD Systems

High 8.8 Published Updated

An attacker can achieve code execution by tricking a user into opening a specially crafted CAL image in Canvas Draw.

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
None listed

What is CVE-2018-3973?

CVE-2018-3973 is a high-severity memory corruption vulnerability in Talos ACD Systems, published on 6 Feb 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 exploitable out of bounds write exists in the CAL parsing functionality of Canvas Draw version 5.0.0. A specially crafted CAL image processed via the application can lead to an out of bounds write overwriting arbitrary data. An attacker can deliver a PCX image to trigger this vulnerability and gain code execution.

Weakness: CWE-787

Which versions are affected by CVE-2018-3973?

It affects 1 product.

Products include Canvasgfx Canvas Draw.

How do I fix CVE-2018-3973?

No fix has been published for CVE-2018-3973 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2018-3973 being exploited?

There is no known exploitation of CVE-2018-3973 in the wild and no public exploit code.

Sources

Also known as GHSA-9455-rmcr-qm22.

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