CVE-2017-10976 Explained : Impact and Mitigation
Learn about CVE-2017-10976, a heap-based buffer over-read vulnerability in SWFTools 0.9.2, allowing attackers to trigger the issue via specially crafted files. Find mitigation steps and prevention measures here.
A heap-based buffer over-read vulnerability exists in SWFTools 0.9.2 when processing specially crafted files with ttftool.
Understanding CVE-2017-10976
What is CVE-2017-10976?
This CVE refers to a heap-based buffer over-read issue in the readBlock() function within lib/ttf.c of SWFTools 0.9.2, triggered by maliciously crafted files.
The Impact of CVE-2017-10976
The vulnerability can be exploited to cause a heap-based buffer over-read, potentially leading to information disclosure or denial of service.
Technical Details of CVE-2017-10976
Vulnerability Description
A heap-based buffer over-read can occur in the readBlock() function in lib/ttf.c of SWFTools 0.9.2 when handling a specially crafted file with ttftool.
Affected Systems and Versions
- Affected Version: SWFTools 0.9.2
Exploitation Mechanism
The vulnerability is triggered by processing a maliciously crafted file using the ttftool in SWFTools 0.9.2.
Mitigation and Prevention
Immediate Steps to Take
- Avoid opening or processing untrusted or unknown SWF files with SWFTools 0.9.2.
- Implement file type and content validation mechanisms.
Long-Term Security Practices
- Regularly update SWFTools to the latest version to patch known vulnerabilities.
- Conduct security assessments and code reviews to identify and address potential vulnerabilities.
- Monitor security mailing lists and advisories for any updates related to SWFTools.
Patching and Updates
Apply patches and updates provided by SWFTools promptly to mitigate the risk of exploitation.