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Microsoft Security Response CenterCVE-2024-27281

An issue was discovered in RDoc 6.3.3 through 6.6.2 as distributed in Ruby 3.x through 3.3.0. When parsing .rdoc_options (used for configuration in RDoc) as a YAML file object injection and resultant remote code execution are possible because there are no restrictions on the classes that can be restored. (When loading the documentation cache object injection and resultant remote code execution are also possible if there were a crafted cache.) The main fixed version is 6.6.3.1. For Ruby 3.0 users a fixed version is rdoc 6.3.4.1. For Ruby 3.1 users a fixed version is rdoc 6.4.1.1. For Ruby 3.2 users a fixed version is rdoc 6.5.1.1.

MediumVendor CVSS 4.5 / 10 1 CVE Published May 14, 2024 at 12:00 AM UTC
Get alerts for cbl2 ruby 3.1.4-4 on CBL Mariner

Summary

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?

One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information.

If impact to additional products is identified, we will update the CVE to reflect this.

Products covered

  • cbl2 ruby 3.1.4-4 on CBL Mariner 2.0

  • azl3 ruby 3.3.3-1 on Azure Linux 3.0

  • cbl2 ruby 3.1.4-9 on CBL-Mariner 2.0

  • azl3 ruby 3.3.0-4 on Azure Linux 3.0

  • cbl2 ruby 3.1.4-9 on CBL Mariner 2.0

Remediation

CBL-Mariner Releases

Vendor-listed fixes

  • 3.1.4-4

  • 3.3.3-1

CVEs in this advisory 1

CVE-2024-27281

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

  4. Confirmed at the source

    Our collector saw this advisory during a later source check.

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