UBUNTU-CVE-2020-7663

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Source
https://ubuntu.com/security/CVE-2020-7663
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-7663.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-7663
Related
Published
2020-06-02T19:15:00Z
Modified
2020-06-02T19:15:00Z
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

websocket-extensions ruby module prior to 0.1.5 allows Denial of Service (DoS) via Regex Backtracking. The extension parser may take quadratic time when parsing a header containing an unclosed string parameter value whose content is a repeating two-byte sequence of a backslash and some other character. This could be abused by an attacker to conduct Regex Denial Of Service (ReDoS) on a single-threaded server by providing a malicious payload with the Sec-WebSocket-Extensions header.

References

Affected packages

Ubuntu:16.04:LTS / ruby-websocket-extensions

Package

Name
ruby-websocket-extensions
Purl
pkg:deb/ubuntu/ruby-websocket-extensions?arch=src?distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.1.2-1+deb9u1build0.16.04.1

Affected versions

0.*

0.1.2-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "0.1.2-1+deb9u1build0.16.04.1",
            "binary_name": "ruby-websocket-extensions"
        }
    ]
}

Ubuntu:18.04:LTS / ruby-websocket-extensions

Package

Name
ruby-websocket-extensions
Purl
pkg:deb/ubuntu/ruby-websocket-extensions?arch=src?distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.1.2-1+deb9u1build0.18.04.1

Affected versions

0.*

0.1.2-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "0.1.2-1+deb9u1build0.18.04.1",
            "binary_name": "ruby-websocket-extensions"
        }
    ]
}

Ubuntu:20.04:LTS / ruby-websocket-extensions

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.1.2-1+deb9u1build0.20.04.1

Affected versions

0.*

0.1.2-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "0.1.2-1+deb9u1build0.20.04.1",
            "binary_name": "ruby-websocket-extensions"
        }
    ]
}

Ubuntu:22.04:LTS / ruby-websocket-extensions

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.1.5-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "0.1.5-1",
            "binary_name": "ruby-websocket-extensions"
        }
    ]
}