CVE-2019-11932 : Vulnerability Insights and Analysis
Learn about CVE-2019-11932, a critical double free vulnerability in android-gif-drawable library allowing remote code execution. Find out how to mitigate and prevent this security issue.
Android-gif-drawable Library Double Free Vulnerability
Understanding CVE-2019-11932
This CVE involves a critical vulnerability in the android-gif-drawable library that can be exploited by remote attackers to execute malicious code or disrupt application functionality.
What is CVE-2019-11932?
The android-gif-drawable library, specifically the DDGifSlurp function in decoding.c, contains a double free vulnerability. This flaw allows attackers to execute arbitrary code or cause denial of service by manipulating specially crafted GIF images. The vulnerability affects versions prior to 1.2.18 of the library.
The Impact of CVE-2019-11932
- Remote attackers can exploit this vulnerability to execute malicious code or disrupt the functioning of applications utilizing the android-gif-drawable library.
- WhatsApp for Android versions before 2.19.244 and various other Android applications are vulnerable to this exploit.
Technical Details of CVE-2019-11932
Vulnerability Description
The vulnerability exists in the DDGifSlurp function in decoding.c within the android-gif-drawable library. It allows remote attackers to trigger a double free condition, leading to potential code execution or denial of service.
Affected Systems and Versions
- Product: android-gif-drawable
- Vendor: koral--
- Versions Affected: < 1.2.18 (unspecified version type: custom)
Exploitation Mechanism
The vulnerability can be exploited by crafting a malicious GIF image that triggers the double free condition in the DDGifSlurp function.
Mitigation and Prevention
Immediate Steps to Take
- Update the android-gif-drawable library to version 1.2.18 or newer to mitigate the vulnerability.
- Monitor official sources for patches and updates related to this CVE.
Long-Term Security Practices
- Regularly update libraries and dependencies in your applications to address known vulnerabilities.
- Implement secure coding practices to prevent similar vulnerabilities in the future.
Patching and Updates
- Apply patches provided by the library vendor promptly to address the double free vulnerability.