CVE-2019-5059 : Exploit Details and Defense Strategies
Learn about CVE-2019-5059, a critical vulnerability in SDL2_image 2.0.4 allowing code execution via an integer overflow in XPM image rendering. Find mitigation steps and preventive measures here.
SDL2_image 2.0.4 version has a vulnerability allowing exploitable code execution through an integer overflow in XPM image rendering.
Understanding CVE-2019-5059
This CVE involves a specific version of SDL2_image with a critical vulnerability that can lead to code execution.
What is CVE-2019-5059?
- The vulnerability in SDL2_image 2.0.4 allows an attacker to trigger a heap overflow by exploiting an integer overflow in XPM image rendering.
- Attackers can achieve this by using a specially crafted XPM image to cause a buffer allocation that is too small, leading to out-of-bounds writing.
The Impact of CVE-2019-5059
- CVSS Base Score: 8.8 (High)
- Attack Vector: Network
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- This vulnerability poses a significant risk due to its high severity and potential for remote code execution.
Technical Details of CVE-2019-5059
SDL2_image 2.0.4 vulnerability specifics and affected systems.
Vulnerability Description
- The vulnerability allows for exploitable code execution through an integer overflow in the XPM image rendering feature of SDL2_image 2.0.4.
Affected Systems and Versions
- Product: SDL
- Version: SDL_image 2.0.4
Exploitation Mechanism
- An attacker can exploit this vulnerability by displaying a specially crafted XPM image, triggering the integer overflow and subsequent heap overflow.
Mitigation and Prevention
Steps to mitigate and prevent exploitation of CVE-2019-5059.
Immediate Steps to Take
- Update SDL2_image to a patched version that addresses the vulnerability.
- Avoid opening XPM images from untrusted or unknown sources.
Long-Term Security Practices
- Regularly update software and libraries to the latest secure versions.
- Implement network security measures to detect and prevent malicious image-based attacks.
Patching and Updates
- Apply patches and updates provided by SDL to fix the vulnerability and enhance system security.