Discover the impact of CVE-2021-44957, a global buffer overflow flaw in ffjpeg leading to Denial of Service attacks. Learn about affected systems and prevention measures.
A global buffer overflow vulnerability exists in ffjpeg through 01.01.2021, similar to CVE-2020-23705, leading to Denial of Service.
Understanding CVE-2021-44957
What is CVE-2021-44957?
The vulnerability is a global buffer overflow in ffjpeg, specifically in the jfif_encode function at ffjpeg/src/jfif.c (line 708), potentially triggered by a crafted jpeg file.
The Impact of CVE-2021-44957
This vulnerability can result in a Denial of Service (DoS) attack.
Technical Details of CVE-2021-44957
Vulnerability Description
The buffer overflow issue in ffjpeg could lead to DoS exploitation via a specially crafted jpeg file.
Affected Systems and Versions
Exploitation Mechanism
The vulnerability can be exploited by utilizing a crafted jpeg file.
Mitigation and Prevention
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates
Apply patches and updates provided by the ffjpeg project to address the buffer overflow vulnerability.