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CVE-2018-1000076: Improper Verification of Cryptographic Signature

March 13, 2018 (updated May 20, 2019)

RubyGems contains an Improper Verification of Cryptographic Signature vulnerability in package.rb that can result in a mis-signed gem being installed, as the tarball would contain multiple gem signatures.

References

  • blog.rubygems.org/2018/02/15/2.7.6-released.html
  • nvd.nist.gov/vuln/detail/CVE-2018-1000076

Code Behaviors & Features

Detect and mitigate CVE-2018-1000076 with GitLab Dependency Scanning

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Affected versions

All versions after 2.2.9 up to 2.5.0

Fixed versions

  • 2.5.1

Solution

Upgrade to version 2.5.1 or above.

Impact 9.8 CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-347: Improper Verification of Cryptographic Signature

Source file

gem/rubygems-update/CVE-2018-1000076.yml

Spotted a mistake? Edit the file on GitLab.

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