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URI gem has ReDoS vulnerability

Moderate severity GitHub Reviewed Published Jun 29, 2023 to the GitHub Advisory Database • Updated May 4, 2024

Package

bundler uri (RubyGems)

Affected versions

>= 0.10.1, < 0.10.3
>= 0.12.0, < 0.12.2
>= 0.11.0, < 0.11.2
< 0.10.0.3

Patched versions

0.10.3
0.12.2
0.11.2
0.10.0.3

Description

A ReDoS issue was discovered in the URI component before 0.12.2 for Ruby. The URI parser mishandles invalid URLs that have specific characters. There is an increase in execution time for parsing strings to URI objects with rfc2396_parser.rb and rfc3986_parser.rb.

NOTE: this issue exists becuse of an incomplete fix for CVE-2023-28755. Version 0.10.3 is also a fixed version.

The Ruby advisory recommends updating the uri gem to 0.12.2. In order to ensure compatibility with the bundled version in older Ruby series, you may update as follows instead:

  • For Ruby 3.0: Update to uri 0.10.3
  • For Ruby 3.1 and 3.2: Update to uri 0.12.2.

You can use gem update uri to update it. If you are using bundler, please add gem uri, >= 0.12.2 (or other version mentioned above) to your Gemfile.

References

Published by the National Vulnerability Database Jun 29, 2023
Published to the GitHub Advisory Database Jun 29, 2023
Reviewed Jul 14, 2023
Last updated May 4, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS score

0.147%
(52nd percentile)

Weaknesses

CVE ID

CVE-2023-36617

GHSA ID

GHSA-hww2-5g85-429m

Source code

Credits

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