1. Ubuntu Security Notices
  2. USN-4870-1

USN-4870-1: Bundler vulnerability

Publication date

15 March 2021

Overview

Bundler could be made to crash or run malicious programs.

Releases

Packages

  • bundler - Manage Ruby application dependencies

Details

It was discovered that Bundler incorrectly created directories with
insecure permissions in /tmp. An attacker could write malicious libraries
to this location for later execution.

It was discovered that Bundler incorrectly created directories with
insecure permissions in /tmp. An attacker could write malicious libraries
to this location for later execution.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
18.04 bionic ruby-bundler –  1.16.1-1ubuntu0.1~esm1  
bundler –  1.16.1-1ubuntu0.1~esm1  

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References

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