CVE-2019-20023 : Security Advisory and Response
Discover the impact of CVE-2019-20023, a memory leak flaw in libsixel 1.8.4. Learn about affected systems, exploitation risks, and mitigation steps to secure your environment.
A memory leak vulnerability was found in the function image_buffer_resize in the file sixel.c within libsixel version 1.8.4.
Understanding CVE-2019-20023
This CVE involves a memory leak issue in a specific function within libsixel version 1.8.4.
What is CVE-2019-20023?
The vulnerability in the function image_buffer_resize in sixel.c in libsixel 1.8.4 results in a memory leak.
The Impact of CVE-2019-20023
The memory leak issue could potentially lead to resource exhaustion and system instability.
Technical Details of CVE-2019-20023
This section provides technical details about the vulnerability.
Vulnerability Description
The flaw in the function image_buffer_resize in sixel.c within libsixel version 1.8.4 causes a memory leak.
Affected Systems and Versions
- Affected Version: libsixel 1.8.4
- Systems using libsixel version 1.8.4 are vulnerable to this memory leak.
Exploitation Mechanism
Exploiting this vulnerability could allow an attacker to cause a denial of service by exhausting system memory.
Mitigation and Prevention
Protecting systems from the CVE-2019-20023 vulnerability is crucial.
Immediate Steps to Take
- Monitor for any abnormal memory consumption on systems using libsixel 1.8.4.
- Consider limiting access to vulnerable systems.
Long-Term Security Practices
- Regularly update libsixel to the latest version to patch known vulnerabilities.
- Implement proper memory management practices in software development.
Patching and Updates
- Apply patches or updates provided by libsixel to address the memory leak vulnerability.