CVE-2019-7635 : What You Need to Know
Learn about CVE-2019-7635, a heap-based buffer over-read vulnerability in SDL versions 1.2.15 and 2.x through 2.0.9. Find out the impact, affected systems, exploitation details, and mitigation steps.
CVE-2019-7635, also known as Blit1to4, is a vulnerability found in video/SDL_blit_1.c, leading to a heap-based buffer over-read in SDL (Simple DirectMedia Layer) versions 1.2.15 and 2.x through 2.0.9.
Understanding CVE-2019-7635
What is CVE-2019-7635?
Blit1to4 in video/SDL_blit_1.c allows a heap-based buffer over-read in SDL versions 1.2.15 and 2.x through 2.0.9.
The Impact of CVE-2019-7635
This 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-2019-7635
Vulnerability Description
Blit1to4 in video/SDL_blit_1.c allows a heap-based buffer over-read in SDL versions 1.2.15 and 2.x through 2.0.9.
Affected Systems and Versions
- Vendor: n/a
- Product: n/a
- Versions: All versions are affected.
Exploitation Mechanism
The vulnerability can be exploited by an attacker to trigger a heap-based buffer over-read in SDL versions 1.2.15 and 2.x through 2.0.9.
Mitigation and Prevention
Immediate Steps to Take
- Apply the latest security updates provided by the SDL project.
- Monitor SDL security advisories for any new patches or mitigations.
Long-Term Security Practices
- Regularly update SDL libraries to the latest versions.
- Conduct security assessments and code reviews to identify and address vulnerabilities.
Patching and Updates
- Update to SDL versions that have addressed the Blit1to4 vulnerability.