CVE-2021-43809: Local Code Execution through Argument Injection via dash leading git url parameter in Gemfile.

CVE-2021-43809 · Severity: low · CVSS 3.1 · Published 2021-12-08

Local Code Execution through Argument Injection via dash leading git url parameter in Gemfile.

Technologies: bundler (RubyGems). Vendors: RubyGems.

Quick answers

Is CVE-2021-43809 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2021-43809 being exploited in the wild.
How severe is CVE-2021-43809?
Low severity, with a CVSS score of 3.1, published 8 December 2021.
Which products and versions are affected?
bundler (RubyGems) ECOSYSTEM:introduced=0,fixed=2.2.33.
Is there a fix for CVE-2021-43809?
Yes. bundler (RubyGems): upgrade to 2.2.33 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2021-43809?
Check whether you run bundler (RubyGems) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • bundler (RubyGems): upgrade to 2.2.33 or later
    bundle update bundler

Affected products

  • bundler (RubyGems) ECOSYSTEM:introduced=0,fixed=2.2.33

Identifiers

  • CVE-2021-43809
  • GHSA-fj7f-vq84-fh43

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