CVE-2017-6387 : Vulnerability Insights and Analysis
Learn about CVE-2017-6387, a vulnerability in radare2 1.2.1 allowing remote attackers to trigger a denial of service via a crafted DEX file. Find out the impact, affected systems, and mitigation steps.
A crafted DEX file can cause a denial of service by triggering an out-of-bounds read and crashing the application through the dex_loadcode function in the libr/bin/p/bin_dex.c file of radare2 version 1.2.1.
Understanding CVE-2017-6387
This CVE entry describes a vulnerability in radare2 version 1.2.1 that allows remote attackers to perform a denial of service attack by exploiting a crafted DEX file.
What is CVE-2017-6387?
The dex_loadcode function in radare2 1.2.1 is susceptible to a remote denial of service attack due to an out-of-bounds read and application crash triggered by a specially crafted DEX file.
The Impact of CVE-2017-6387
This vulnerability can be exploited by remote attackers to crash applications using radare2 version 1.2.1, potentially leading to service disruption and system instability.
Technical Details of CVE-2017-6387
This section provides more in-depth technical information about the vulnerability.
Vulnerability Description
The dex_loadcode function in libr/bin/p/bin_dex.c in radare2 1.2.1 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted DEX file.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: radare2 1.2.1
Exploitation Mechanism
The vulnerability is exploited by sending a specially crafted DEX file to the target application, triggering an out-of-bounds read and causing the application to crash.
Mitigation and Prevention
To address CVE-2017-6387 and enhance overall security, follow the mitigation strategies below.
Immediate Steps to Take
- Update radare2 to a patched version that addresses the vulnerability.
- Implement network-level protections to filter out malicious DEX files.
Long-Term Security Practices
- Regularly update software and libraries to prevent known vulnerabilities.
- Conduct security assessments and code reviews to identify and address potential weaknesses.
Patching and Updates
Ensure timely application of security patches and updates to radare2 to mitigate the risk of exploitation.