Heap-Based Buffer Overflow in MCPP Package - CVE-2019-14274
Summary
DEBIAN-CVE-2019-14274: MCPP 2.7.2 has a heap-based buffer overflow in the do_msg() function in support.c. Affects mcpp versions < 2.7.2-5. Fixed in 2.7.2-5. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
MCPP (Macro C Preprocessor) is a widely used tool in software development that processes macro definitions and expansions in C programming. It is known for its efficiency in handling complex macro operations. However, versions prior to 2.7.2-5 are vulnerable to a critical security flaw that can lead to severe exploitation risks.
Vulnerability Detail
The vulnerability identified as CVE-2019-14274 is a heap-based buffer overflow found in the do_msg() function within the support.c file of MCPP version 2.7.2. This flaw allows attackers to exploit memory corruption, potentially leading to arbitrary code execution or denial of service. The issue arises from improper handling of input data, which can overflow the allocated memory buffer, compromising the integrity of the application.
How To Fix
Minimum fixed version
2.7.2-5
This is the first release that contains the fix.
sudo apt-get install --only-upgrade mcppTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can avoid using the vulnerable features of MCPP until the package is updated. Additionally, restricting access to the application can help mitigate potential exploitation risks.
Conclusion
The MCPP package has a critical vulnerability (CVE-2019-14274) that can lead to severe security risks. It is essential for users to update to the patched version 2.7.2-5 to protect their systems. Utilizing tools like Vulert can help monitor for such vulnerabilities effectively.
See every vulnerability recorded for mcpp →
FAQ
CVE-2019-14274 is a security vulnerability in the MCPP package that allows for a heap-based buffer overflow, potentially leading to code execution.
All versions of MCPP prior to 2.7.2-5 are affected by this vulnerability.
You can use the Vulert platform to monitor and alert for open-source vulnerabilities. Visit Vulert Scanner to check if your application is impacted.
The risks include potential arbitrary code execution, data corruption, and denial of service, which can compromise system security.
While updating is the best solution, restricting access to the application and avoiding vulnerable features can serve as temporary mitigations.
References
Related vulnerabilities
Recent vulnerabilities recorded for mcpp.
