USN-4089-1

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Source
https://ubuntu.com/security/notices/USN-4089-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4089-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4089-1
Upstream
Related
Published
2019-08-07T16:44:21.988723Z
Modified
2025-10-13T04:34:53Z
Summary
ruby-rack vulnerability
Details

It was discovered that Rack incorrectly handled carefully crafted requests. A remote attacker could use this issue to execute a cross-site scripting (XSS) attack.

References

Affected packages

Ubuntu:16.04:LTS / ruby-rack

Package

Name
ruby-rack
Purl
pkg:deb/ubuntu/ruby-rack@1.6.4-3ubuntu0.1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.4-3ubuntu0.1

Affected versions

1.*

1.5.2-4
1.6.4-2
1.6.4-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.6.4-3ubuntu0.1",
            "binary_name": "ruby-rack"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2018-16471"
        }
    ]
}

Ubuntu:18.04:LTS / ruby-rack

Package

Name
ruby-rack
Purl
pkg:deb/ubuntu/ruby-rack@1.6.4-4ubuntu0.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.4-4ubuntu0.1

Affected versions

1.*

1.6.4-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.6.4-4ubuntu0.1",
            "binary_name": "ruby-rack"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2018-16471"
        }
    ]
}