Upstream information

CVE-2021-32740 at MITRE


Addressable is an alternative implementation to the URI implementation that is part of Ruby's standard library. An uncontrolled resource consumption vulnerability exists after version 2.3.0 through version 2.7.0. Within the URI template implementation in Addressable, a maliciously crafted template may result in uncontrolled resource consumption, leading to denial of service when matched against a URI. In typical usage, templates would not normally be read from untrusted user input, but nonetheless, no previous security advisory for Addressable has cautioned against doing this. Users of the parsing capabilities in Addressable but not the URI template capabilities are unaffected. The vulnerability is patched in version 2.8.0. As a workaround, only create Template objects from trusted sources that have been validated not to produce catastrophic backtracking.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v3 Scores
Base Score 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector Network
Access Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1188207 [IN_PROGRESS]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE OpenStack Cloud Crowbar 8
  • ruby2.1-rubygem-addressable >= 2.3.6-3.3.3
SUSE OpenStack Cloud Crowbar 9
  • ruby2.1-rubygem-addressable >= 2.3.6-4.3.3
openSUSE Tumbleweed
  • ruby2.7-rubygem-http >= 5.0.4-1.1
  • ruby3.0-rubygem-http >= 5.0.4-1.1
openSUSE Tumbleweed GA ruby2.7-rubygem-http-5.0.4-1.1

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE OpenStack Cloud 7 rubygem-addressable Ignore
SUSE OpenStack Cloud Crowbar 8 rubygem-addressable Released
SUSE OpenStack Cloud Crowbar 9 rubygem-addressable Released