Learn about CVE-2021-21914, a critical heap-based buffer overflow vulnerability in Accusoft ImageGear 19.10 that allows attackers to execute arbitrary code. Find mitigation steps and prevention measures.
A heap-based buffer overflow vulnerability in Accusoft ImageGear 19.10 allows code execution via a specially-crafted file.
Understanding CVE-2021-21914
This vulnerability affects Accusoft's ImageGear version 19.10, posing a critical risk due to a heap-based buffer overflow flaw in the DecoderStream::Append functionality.
What is CVE-2021-21914?
The CVE-2021-21914 vulnerability in Accusoft ImageGear 19.10 enables attackers to execute arbitrary code by exploiting a heap-based buffer overflow in the software's DecoderStream::Append function.
The Impact of CVE-2021-21914
With a CVSS base score of 9.8, this critical vulnerability allows remote attackers to compromise the confidentiality, integrity, and availability of affected systems without the need for special privileges.
Technical Details of CVE-2021-21914
Accusoft ImageGear 19.10 is affected by a heap-based buffer overflow vulnerability in the DecoderStream::Append function, making it susceptible to remote code execution.
Vulnerability Description
The vulnerability arises from improper handling of specially-crafted files, which can trigger a buffer overflow leading to potential execution of arbitrary code.
Affected Systems and Versions
Accusoft ImageGear version 19.10 is impacted by this vulnerability, exposing systems with this software version to exploitation.
Exploitation Mechanism
An attacker can exploit the CVE-2021-21914 vulnerability by providing a malicious file to the affected Accusoft ImageGear software, which could then lead to the execution of arbitrary code.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-21914, immediate steps should be taken to address the vulnerability and prevent exploitation.
Immediate Steps to Take
Users are advised to update Accusoft ImageGear to a non-vulnerable version and refrain from opening files from untrusted sources to prevent potential attacks.
Long-Term Security Practices
In the long term, it is essential to maintain regular software updates, employ network security measures, and conduct security assessments to identify and address vulnerabilities proactively.
Patching and Updates
Accusoft should release a patch or update to rectify the heap-based buffer overflow vulnerability in ImageGear 19.10, ensuring that users can secure their systems against potential exploits.