CVE-2020-23707 : Vulnerability Insights and Analysis
Learn about CVE-2020-23707, a heap-based buffer overflow vulnerability in ok-file-formats through 2020-06-26, allowing attackers to cause a Denial of Service (DOS) via a crafted jpeg file. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A heap-based buffer overflow vulnerability in the function ok_jpg_decode_block_progressive() at ok_jpg.c:1054 of ok-file-formats through 2020-06-26 allows attackers to cause a Denial of Service (DOS) via a crafted jpeg file.
Understanding CVE-2020-23707
This CVE entry describes a specific vulnerability in the ok-file-formats library that could be exploited by attackers to trigger a Denial of Service attack.
What is CVE-2020-23707?
The vulnerability is a heap-based buffer overflow in the ok_jpg_decode_block_progressive() function within the ok-file-formats library, potentially leading to a Denial of Service condition when processing a malicious jpeg file.
The Impact of CVE-2020-23707
The exploitation of this vulnerability could result in a Denial of Service (DOS) attack, causing the affected system to become unresponsive or crash.
Technical Details of CVE-2020-23707
This section provides more in-depth technical information about the vulnerability.
Vulnerability Description
The vulnerability exists in the ok_jpg_decode_block_progressive() function at ok_jpg.c:1054 in the ok-file-formats library, allowing attackers to perform a heap-based buffer overflow.
Affected Systems and Versions
- Affected Versions: All versions of ok-file-formats through 2020-06-26 are impacted.
- Affected Products: Not applicable
- Affected Vendor: Not applicable
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting a specially designed jpeg file to trigger the heap-based buffer overflow in the ok-file-formats library.
Mitigation and Prevention
It is crucial to take immediate steps to mitigate the risks posed by CVE-2020-23707.
Immediate Steps to Take
- Apply security patches or updates provided by the vendor to address the vulnerability.
- Consider implementing network-level protections to filter out potentially malicious jpeg files.
Long-Term Security Practices
- Regularly update software and libraries to ensure that known vulnerabilities are patched promptly.
- Conduct security assessments and code reviews to identify and address potential vulnerabilities in the codebase.
Patching and Updates
Ensure that the ok-file-formats library is updated to a version that includes a fix for the heap-based buffer overflow vulnerability.