CVE-2021-21944 Memory corruption in ImageGear
Heap-based buffer overflows in Accusoft ImageGear allow attackers to execute arbitrary code or cause denial of service via malicious TIFF files.
- 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-2021-21944?
CVE-2021-21944 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
Two heap-based buffer overflow vulnerabilities exist in the TIFF parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger these vulnerabilities.This heap-based buffer oveflow takes place trying to copy the first 12 bits from local variable.
Which versions are affected by CVE-2021-21944?
It affects 1 product.
Products include Accusoft Imagegear.
How do I fix CVE-2021-21944?
No fix has been published for CVE-2021-21944 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-2021-21944 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-21944 exists.
Other vulnerabilities in Accusoft Imagegear
Sources
Also known as GHSA-2r2x-qvvf-3rjr.