Vulnerability in radare2 - security update
Summary
DLA-901-1: radare2 - security update. Affects radare2 versions < 0.9-3+deb7u2. Fixed in 0.9-3+deb7u2. How to fix ↓
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Background
Radare2 is an open-source framework for reverse engineering and binary analysis. It provides a set of tools and libraries to analyze executable files, disassemble code, debug programs, and more. The vulnerability in radare2 version 1.2.1, identified as CVE-2017-6448, allows remote attackers to exploit a stack-based buffer overflow in the dalvik_disassemble function of the libr/asm/p/asm_dalvik.c file. This can lead to a denial of service (application crash) or potentially have other unspecified impacts when processing a crafted DEX file.
Vulnerability Detail
The vulnerability in radare2 version 1.2.1 arises from a stack-based buffer overflow in the dalvik_disassemble function. This function is responsible for disassembling Dalvik bytecode, which is used in Android applications. By providing a specially crafted DEX file, remote attackers can trigger the buffer overflow and cause the application to crash. The impact of this vulnerability could extend beyond a denial of service, potentially allowing attackers to execute arbitrary code or perform other malicious actions.
How To Fix
Minimum fixed version
0.9-3+deb7u2
This is the first release that contains the fix.
sudo apt-get install --only-upgrade radare2Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability. However, users can mitigate the risk by following best practices for secure software usage. This includes avoiding the processing of untrusted or suspicious DEX files, limiting network exposure of radare2 instances, and keeping the software up to date with the latest security patches.
Conclusion
The vulnerability in radare2 version 1.2.1 exposes users to the risk of a stack-based buffer overflow when processing crafted DEX files. To mitigate this risk, it is crucial to upgrade to radare2 version 0.9-3+deb7u2 or later, which includes the necessary patches to address the vulnerability. Following best practices for secure software usage and staying informed about security advisories are also recommended. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for radare2 →
FAQ
Radare2 is an open-source framework for reverse engineering and binary analysis. It provides a range of tools and libraries to analyze executable files, disassemble code, debug programs, and more.
The vulnerability in radare2 version 1.2.1 can lead to a denial of service (application crash) or potentially have other unspecified impacts. Attackers could exploit the vulnerability to execute arbitrary code or perform other malicious actions.
To fix this vulnerability, it is recommended to upgrade the radare2 package to version 0.9-3+deb7u2 or later. This updated version includes the necessary patches to address the buffer overflow issue.
While no specific workarounds are mentioned, users can mitigate the risk by following best practices for secure software usage. This includes avoiding the processing of untrusted or suspicious DEX files, limiting network exposure of radare2 instances, and keeping the software up to date with the latest security patches.
More information about Debian LTS security advisories, including how to apply updates and frequently asked questions, can be found at: https://wiki.debian.org/LTS
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