CVE-2019-3572 : Vulnerability Insights and Analysis
Discover the heap-based buffer over-read vulnerability in libming version 0.4.8 with CVE-2019-3572. Learn about the impact, affected systems, exploitation, and mitigation steps.
A heap-based buffer over-read vulnerability was discovered in libming version 0.4.8, specifically in the writePNG function of the dbl2png command-line program.
Understanding CVE-2019-3572
This CVE involves a heap-based buffer over-read issue in libming version 0.4.8, leading to a potential out-of-bounds write due to an incorrect call to png_write_row in libpng.
What is CVE-2019-3572?
The vulnerability in libming version 0.4.8 allows for a heap-based buffer over-read in the writePNG function of the dbl2png command-line program, potentially resulting in an out-of-bounds write under certain memory arrangements.
The Impact of CVE-2019-3572
The vulnerability could be exploited by an attacker to trigger an out-of-bounds write, potentially leading to a denial of service or arbitrary code execution.
Technical Details of CVE-2019-3572
This section provides more technical insights into the vulnerability.
Vulnerability Description
The issue arises from a heap-based buffer over-read in the writePNG function of the dbl2png command-line program due to an incorrect call to png_write_row in libpng.
Affected Systems and Versions
- Affected Version: 0.4.8 of libming
- Systems using libming version 0.4.8
Exploitation Mechanism
- Attackers can exploit this vulnerability by crafting a malicious PNG file to trigger the heap-based buffer over-read.
Mitigation and Prevention
Protecting systems from CVE-2019-3572 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update libming to a patched version that addresses the heap-based buffer over-read vulnerability.
- Consider implementing proper input validation to prevent malicious inputs.
Long-Term Security Practices
- Regularly update software and libraries to the latest secure versions.
- Conduct security assessments and audits to identify and mitigate vulnerabilities proactively.
Patching and Updates
- Apply patches provided by the libming project to fix the heap-based buffer over-read vulnerability.