Ruby: CVSS (Max): 7.5

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2023.1903
                CVE-2023-28755: ReDoS vulnerability in URI
                               31 March 2023

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Ruby
Publisher:         Ruby
Operating System:  UNIX variants (UNIX, Linux, OSX)
                   Windows
Resolution:        Patch/Upgrade
CVE Names:         CVE-2023-28755  

Original Bulletin: 
   https://www.ruby-lang.org/en/news/2023/03/28/redos-in-uri-cve-2023-28755/

Comment: CVSS (Max):  7.5 CVE-2023-28755 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
         CVSS Source: SUSE
         Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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CVE-2023-28755: ReDoS vulnerability in URI

Posted by hsbt on 28 Mar 2023

We have released the uri gem version 0.12.1, 0.11.1, 0.10.2 and 0.10.0.1 that
has a security fix for a ReDoS vulnerability. This vulnerability has been
assigned the CVE identifier CVE-2023-28755.

Details

A ReDoS issue was discovered in the URI component. The URI parser mishandles
invalid URLs that have specific characters. It causes an increase in execution
time for parsing strings to URI objects.

The uri gem version 0.12.0, 0.11.0, 0.10.1, 0.10.0 and all versions prior
0.10.0 are vulnerable for this vulnerability.

Recommended action

We recommend to update the uri gem to 0.12.1. In order to ensure compatibility
with bundled version in older Ruby series, you may update as follows instead:

  o For Ruby 2.7: Update to uri 0.10.0.1
  o For Ruby 3.0: Update to uri 0.10.2
  o For Ruby 3.1: Update to uri 0.11.1
  o For Ruby 3.2: Update to uri 0.12.1

You can use gem update uri to update it. If you are using bundler, please add
gem "uri", ">= 0.12.1" (or other version mentioned above) to your Gemfile.

Affected versions

  o uri gem 0.12.0
  o uri gem 0.11.0
  o uri gem 0.10.1
  o uri gem 0.10.0 or before

Credits

Thanks to Dominic Couture for discovering this issue.

History

  o Originally published at 2023-03-28 01:00:00 (UTC)
  o Update Affected versions at 2023-03-28 02:00:00 (UTC)

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