USN-4502-1

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-4502-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4502-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-4502-1
Upstream
Related
Published
2020-09-16T13:07:44.578664Z
Modified
2025-10-13T04:35:13Z
Summary
ruby-websocket-extensions vulnerability
Details

It was discovered that websocket-extensions does not properly parse special headers. A remote attacker could use this issue to cause regex backtracking, resulting in a denial of service. (CVE-2020-7663)

References

Affected packages

Ubuntu:16.04:LTS / ruby-websocket-extensions

Package

Name
ruby-websocket-extensions
Purl
pkg:deb/ubuntu/ruby-websocket-extensions@0.1.2-1+deb9u1build0.16.04.1?arch=source&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 

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

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4502-1.json"

cves_map

{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-7663",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}

Ubuntu:18.04:LTS / ruby-websocket-extensions

Package

Name
ruby-websocket-extensions
Purl
pkg:deb/ubuntu/ruby-websocket-extensions@0.1.2-1+deb9u1build0.18.04.1?arch=source&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 

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

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4502-1.json"

cves_map

{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-7663",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}

Ubuntu:20.04:LTS / ruby-websocket-extensions

Package

Name
ruby-websocket-extensions
Purl
pkg:deb/ubuntu/ruby-websocket-extensions@0.1.2-1+deb9u1build0.20.04.1?arch=source&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 

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

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4502-1.json"

cves_map

{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-7663",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}