CVE-2021-21943 Memory corruption in ImageGear

Critical 9.8 Published Updated

A heap-based buffer overflow in the XWD parser allows attackers to execute arbitrary code via a malicious file.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-21943?

CVE-2021-21943 is a critical memory corruption vulnerability in Accusoft Imagegear, published on 14 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A heap-based buffer overflow vulnerability exists in the XWD parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Weakness: CWE-1284, CWE-122

Which versions are affected by CVE-2021-21943?

It affects 1 product.

Products include Accusoft Imagegear.

How do I fix CVE-2021-21943?

No fix has been published for CVE-2021-21943 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-2021-21943 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-21943 exists.

All Accusoft Imagegear vulnerabilities

Sources

Also known as GHSA-7p2m-7xhq-7v45.

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