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 v2 Scores
  National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7.5 7.5
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1188207 [RESOLVED / FIXED]

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
  • ruby3.1-rubygem-http >= 5.1.0-1.1
  • ruby3.2-rubygem-http >= 5.1.0-1.4

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Please note that this evaluation state might be work in progress, incomplete or outdated.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. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products past their end of life and not receiving proactive updates anymore.
SUSE Enterprise Storage 4 rubygem-addressable Ignore
SUSE OpenStack Cloud 7 rubygem-addressable Ignore
SUSE OpenStack Cloud Crowbar 8 rubygem-addressable Released
SUSE OpenStack Cloud Crowbar 9 rubygem-addressable Released

SUSE Timeline for this CVE

CVE page created: Tue Jul 6 18:21:19 2021
CVE page last modified: Sun Jun 16 17:35:07 2024