UBUNTU-CVE-2021-32740

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Source
https://ubuntu.com/security/CVE-2021-32740
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-32740.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-32740
Related
Published
2021-07-06T15:15:00Z
Modified
2024-10-15T14:08:10Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:Pro:16.04:LTS / ruby-addressable

Package

Name
ruby-addressable
Purl
pkg:deb/ubuntu/ruby-addressable?arch=src?distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.3.8-1

Ecosystem specific 

{
    "ubuntu_priority": "low"
}

Ubuntu:Pro:18.04:LTS / ruby-addressable

Package

Name
ruby-addressable
Purl
pkg:deb/ubuntu/ruby-addressable?arch=src?distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.5.1-2
2.5.2-1

Ecosystem specific 

{
    "ubuntu_priority": "low"
}

Ubuntu:20.04:LTS / ruby-addressable

Package

Name
ruby-addressable
Purl
pkg:deb/ubuntu/ruby-addressable?arch=src?distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.5.2-1
2.7.0-1

Ecosystem specific 

{
    "ubuntu_priority": "low"
}

Ubuntu:22.04:LTS / ruby-addressable

Package

Name
ruby-addressable
Purl
pkg:deb/ubuntu/ruby-addressable?arch=src?distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.7.0-2

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "low",
    "binaries": [
        {
            "binary_version": "2.7.0-2",
            "binary_name": "ruby-addressable"
        }
    ]
}