CVE-2019-3574 : Exploit Details and Defense Strategies
Learn about CVE-2019-3574, a heap-based buffer over-read vulnerability in libsixel v1.8.2, potentially leading to information disclosure or denial of service. Find mitigation steps and prevention measures here.
A heap-based buffer over-read vulnerability has been identified in the function load_jpeg() within the file loader.c in libsixel v1.8.2, as demonstrated by img2sixel.
Understanding CVE-2019-3574
This CVE involves a specific vulnerability in libsixel v1.8.2.
What is CVE-2019-3574?
CVE-2019-3574 is a heap-based buffer over-read vulnerability found in the load_jpeg() function in the file loader.c of libsixel v1.8.2, with a demonstration by img2sixel.
The Impact of CVE-2019-3574
The vulnerability could potentially lead to information disclosure or denial of service if exploited by malicious actors.
Technical Details of CVE-2019-3574
This section provides more technical insights into the CVE.
Vulnerability Description
The vulnerability exists in the load_jpeg() function within the file loader.c of libsixel v1.8.2, allowing a heap-based buffer over-read.
Affected Systems and Versions
- Affected Version: libsixel v1.8.2
- Specific Product and Vendor: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by manipulating certain input data to trigger the heap-based buffer over-read in the load_jpeg() function.
Mitigation and Prevention
Protecting systems from CVE-2019-3574 is crucial to maintaining security.
Immediate Steps to Take
- Update libsixel to a patched version if available.
- Monitor security advisories for any official fixes or workarounds.
Long-Term Security Practices
- Regularly update software and libraries to address known vulnerabilities.
- Implement secure coding practices to prevent buffer over-read vulnerabilities.
Patching and Updates
- Apply patches provided by the software vendor promptly to mitigate the vulnerability.