CVE-2020-6613 : Security Advisory and Response
Learn about CVE-2020-6613, a heap-based buffer over-read vulnerability in GNU LibreDWG 0.9.3.2564, allowing attackers to potentially access sensitive information. Find mitigation steps and preventive measures here.
GNU LibreDWG 0.9.3.2564 has a heap-based buffer over-read vulnerability in bit_search_sentinel in bits.c.
Understanding CVE-2020-6613
What is CVE-2020-6613?
CVE-2020-6613 is a vulnerability found in GNU LibreDWG 0.9.3.2564 that allows for a heap-based buffer over-read in the bits.c file.
The Impact of CVE-2020-6613
This vulnerability could potentially be exploited by attackers to read sensitive information from the affected system's memory.
Technical Details of CVE-2020-6613
Vulnerability Description
The vulnerability exists in the bit_search_sentinel function in bits.c in GNU LibreDWG 0.9.3.2564, leading to a heap-based buffer over-read.
Affected Systems and Versions
- Product: GNU LibreDWG
- Version: 0.9.3.2564
Exploitation Mechanism
Attackers can exploit this vulnerability to read beyond the allocated memory, potentially exposing sensitive data.
Mitigation and Prevention
Immediate Steps to Take
- Apply the patches provided by the vendor promptly.
- Monitor vendor advisories for updates and security patches.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions.
- Implement proper input validation to prevent buffer over-read vulnerabilities.
Patching and Updates
- Ensure that the affected GNU LibreDWG version is updated to a patched version to mitigate the vulnerability.