Heap Buffer Overflow in qpdf Package: Critical Vulnerability Overview
Summary
DEBIAN-CVE-2024-24246: Heap Buffer Overflow vulnerability in qpdf 11.9.0 allows attackers to crash the application via the std::__shared_count() function at /bits/shared_ptr_base.h. Affects qpdf versions < 11.9.0-1. Fixed in 11.9.0-1. 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
qpdf is a powerful open-source tool for PDF manipulation, allowing users to inspect, modify, and create PDF files. It is widely used in various applications for tasks such as merging, splitting, and encrypting PDFs. However, a critical vulnerability has been identified in versions prior to 11.9.0-1, which could lead to severe security risks.
Vulnerability Detail
The vulnerability is a Heap Buffer Overflow in qpdf version 11.9.0, specifically occurring in the std::__shared_count() function located in /bits/shared_ptr_base.h. This flaw can be exploited by attackers to crash the application, potentially leading to denial of service or further exploitation of the system. The issue arises from improper handling of memory allocation, which can allow malicious actors to manipulate the application's memory.
How To Fix
Minimum fixed version
11.9.0-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade qpdfTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, users can avoid using the affected features of qpdf until the package is updated. Additionally, running the application in a controlled environment or sandbox may help mitigate potential risks.
Conclusion
The Heap Buffer Overflow vulnerability in the qpdf package poses significant risks to users running affected versions. It is crucial to update to the latest patched version to safeguard against potential exploits. Users are encouraged to monitor their systems and utilize tools like Vulert for real-time vulnerability alerts.
See every vulnerability recorded for qpdf →
FAQ
A Heap Buffer Overflow occurs when a program writes more data to a buffer located on the heap than it can hold, potentially overwriting adjacent memory and leading to unpredictable behavior.
Exploitation of this vulnerability can lead to application crashes, denial of service, and may allow attackers to execute arbitrary code, compromising system security.
Yes, you can use Vulert, which monitors open-source vulnerabilities in your software. By using the Vulert playground, you can check if your application is affected by this vulnerability without any signup.
If immediate updates are not possible, consider using workarounds such as limiting access to the application or running it in a secure environment until the update can be applied.
Detailed information can be found in the official Debian CVE database and through security advisories related to the qpdf package.
References
Related vulnerabilities
Recent vulnerabilities recorded for qpdf.
