USN-7709-1

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Source
https://ubuntu.com/security/notices/USN-7709-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7709-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-7709-1
Upstream
Related
Published
2025-08-21T13:53:54.347133Z
Modified
2025-10-13T04:42:21Z
Summary
ruby-webrick vulnerability
Details

It was discovered that WEBrick incorrectly parsed HTTP headers. In configurations where WEBrick is placed behind an HTTP proxy, a remote attacker could possibly use this issue to perform an HTTP Request Smuggling attack.

References

Affected packages

Ubuntu:22.04:LTS / ruby-webrick

Package

Name
ruby-webrick
Purl
pkg:deb/ubuntu/ruby-webrick@1.7.0-3ubuntu0.2?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.7.0-3ubuntu0.2

Affected versions

1.*

1.7.0-1
1.7.0-2
1.7.0-3
1.7.0-3ubuntu0.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1.7.0-3ubuntu0.2",
            "binary_name": "ruby-webrick"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7709-1.json"

cves_map

{
    "cves": [
        {
            "id": "CVE-2025-6442",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:22.04:LTS"
}

Ubuntu:24.04:LTS / ruby-webrick

Package

Name
ruby-webrick
Purl
pkg:deb/ubuntu/ruby-webrick@1.8.1-1ubuntu0.2?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.1-1ubuntu0.2

Affected versions

1.*

1.8.1-1
1.8.1-1ubuntu0.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1.8.1-1ubuntu0.2",
            "binary_name": "ruby-webrick"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7709-1.json"

cves_map

{
    "cves": [
        {
            "id": "CVE-2025-6442",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:24.04:LTS"
}

Ubuntu:25.04 / ruby-webrick

Package

Name
ruby-webrick
Purl
pkg:deb/ubuntu/ruby-webrick@1.8.1-1ubuntu1.1?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.1-1ubuntu1.1

Affected versions

1.*

1.8.1-1ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1.8.1-1ubuntu1.1",
            "binary_name": "ruby-webrick"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7709-1.json"

cves_map

{
    "cves": [
        {
            "id": "CVE-2025-6442",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:25.04"
}