CVE-2021-21946: Buffer Overflow

Published Apr 14, 2022

Updated

Two heap-based buffer overflow vulnerabilities exists in the JPEG-JFIF lossless Huffman image 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 overflow takes place when the SOF3 precision is lower than 9.

Affected Software

1 affected component

Accusoft ImageGear=19.10

Event History

Apr 14, 2022

CVE Published

via MITRE·07:55 PM

Data Sourced

via MITRE·07:55 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What is CVE-2021-21946?

CVE-2021-21946 is a vulnerability that exists in the JPEG-JFIF lossless Huffman image parser functionality of Accusoft ImageGear 19.10, allowing a specially-crafted file to trigger a heap buffer overflow.

How severe is CVE-2021-21946?

CVE-2021-21946 has a severity rating of critical with a CVSS score of 8.8.

What is Accusoft ImageGear?

Accusoft ImageGear is a software library used for image processing and conversion.

How does CVE-2021-21946 affect Accusoft ImageGear?

CVE-2021-21946 affects the JPEG-JFIF lossless Huffman image parser functionality of Accusoft ImageGear 19.10, allowing a specially-crafted file to trigger a heap buffer overflow.

Is there a fix for CVE-2021-21946?

It is recommended to update to a patched version of Accusoft ImageGear to fix CVE-2021-21946.