Logo
ScienceStack
Table of Contents
Fetching ...
Sign In

Uncovering and Mitigating the Impact of Frozen Package Versions for Fixed-Release Linux

Wei Tang, Zhengzi Xu, Chengwei Liu, Ping Luo, Yang Liu

TL;DR

This paper tackles the ecosystem gap in fixed-release Linux by constructing an evolutionary dependency-vulnerability graph (EDVGraph) for Debian across five releases (2011–2022) and revealing substantial project churn, pervasive dependency incompatibilities, and transitive vulnerability propagation. It introduces a four-module framework to automatically collect packages, parse metadata, and map CVEs, enabling large-scale analyses of compatibility and security. The key contributions include revealing the scale of project and version dynamics, quantifying incompatibilities and vulnerability lag, and proposing ccenv, a mirror-based, per-project isolated environment tool that leverages Debian mirrors to bridge release gaps. ccenv is validated on real-world incompatible projects and shown to install and run many applications in isolated environments, offering a practical complement to traditional package managers and a path toward more secure, maintainable fixed-release Linux systems.

Abstract

Towards understanding the ecosystem gap of fixed-release Linux that is caused by the evolution of mirrors, we conducted a comprehensive study of the Debian ecosystem. This study involved the collection of Debian packages and the construction of the dependency graph of the Debian ecosystem. Utilizing historic snapshots of Debian mirrors, we were able to recover the evolution of the dependency graph for all Debian releases, including obsolete ones. Through the analysis of the dependency graph and its evolution, we investigated from two key aspects: (1) compatibility issues and (2) security threats in the Debian ecosystem. Our findings provide valuable insights into the use and design of Linux package managers. To address the challenges revealed in the empirical study and bridge the ecosystem gap between releases, we propose a novel package management approach allowing for separate dependency environments based on native Debian mirrors. We present a working prototype, named ccenv, which can effectively remedy the inadequacy of current tools.

Uncovering and Mitigating the Impact of Frozen Package Versions for Fixed-Release Linux

TL;DR

This paper tackles the ecosystem gap in fixed-release Linux by constructing an evolutionary dependency-vulnerability graph (EDVGraph) for Debian across five releases (2011–2022) and revealing substantial project churn, pervasive dependency incompatibilities, and transitive vulnerability propagation. It introduces a four-module framework to automatically collect packages, parse metadata, and map CVEs, enabling large-scale analyses of compatibility and security. The key contributions include revealing the scale of project and version dynamics, quantifying incompatibilities and vulnerability lag, and proposing ccenv, a mirror-based, per-project isolated environment tool that leverages Debian mirrors to bridge release gaps. ccenv is validated on real-world incompatible projects and shown to install and run many applications in isolated environments, offering a practical complement to traditional package managers and a path toward more secure, maintainable fixed-release Linux systems.

Abstract

Towards understanding the ecosystem gap of fixed-release Linux that is caused by the evolution of mirrors, we conducted a comprehensive study of the Debian ecosystem. This study involved the collection of Debian packages and the construction of the dependency graph of the Debian ecosystem. Utilizing historic snapshots of Debian mirrors, we were able to recover the evolution of the dependency graph for all Debian releases, including obsolete ones. Through the analysis of the dependency graph and its evolution, we investigated from two key aspects: (1) compatibility issues and (2) security threats in the Debian ecosystem. Our findings provide valuable insights into the use and design of Linux package managers. To address the challenges revealed in the empirical study and bridge the ecosystem gap between releases, we propose a novel package management approach allowing for separate dependency environments based on native Debian mirrors. We present a working prototype, named ccenv, which can effectively remedy the inadequacy of current tools.
Paper Structure (27 sections, 7 figures, 7 tables)

This paper contains 27 sections, 7 figures, 7 tables.

Table of Contents

  1. Introduction
  2. Background
  3. Glossary
  4. Fixed-Release Model
  5. DepGraph Construction
  6. Crawler
  7. Parser
  8. Constructor
  9. Matcher
  10. Empirical Study
  11. Dataset
  12. RQ1: Compatibility issues
  13. How does the number of projects evolve across Debian releases?
  14. What is the span of version updates in the life of Debian releases?
  15. How many version conflicts are there across Debian releases?
  16. ...and 12 more sections

Figures (7)

  • Figure 1: Overview of our work.
  • Figure 2: Version evolution mechanism of Debian packages using the example of Glfw. Orange boxes present the package versions after Debian distributions are released, and gray boxes present the package updates during the time the distribution is under development, before release.
  • Figure 3: Overview of the framework for evolutionary dependency-vulnerability graph construction.
  • Figure 4: An example of control file debian_package:online.
  • Figure 5: The number of projects on Debian over time. Eol: end of life. Eol_lts: end of long term support.
  • ...and 2 more figures