UBUNTU-CVE-2017-11104

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Source
https://ubuntu.com/security/CVE-2017-11104
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-11104.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2017-11104
Upstream
Published
2017-07-08T10:29:00Z
Modified
2025-09-08T16:44:19Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Knot DNS before 2.4.5 and 2.5.x before 2.5.2 contains a flaw within the TSIG protocol implementation that would allow an attacker with a valid key name and algorithm to bypass TSIG authentication if no additional ACL restrictions are set, because of an improper TSIG validity period check.

References

Affected packages

Ubuntu:Pro:16.04:LTS / knot

Package

Name
knot
Purl
pkg:deb/ubuntu/knot@2.1.1-1build1?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

2.*

2.0.0-1
2.0.1-4
2.0.1-4build1
2.0.2-1
2.0.2-1build1
2.1.0~rc1-52-gd80ce77-1
2.1.0~rc1-55-gf227348-1
2.1.0-2
2.1.0-3
2.1.1-1
2.1.1-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "knot",
            "binary_version": "2.1.1-1build1"
        },
        {
            "binary_name": "knot-dnsutils",
            "binary_version": "2.1.1-1build1"
        },
        {
            "binary_name": "knot-host",
            "binary_version": "2.1.1-1build1"
        },
        {
            "binary_name": "libdnssec0",
            "binary_version": "2.1.1-1build1"
        },
        {
            "binary_name": "libknot-dev",
            "binary_version": "2.1.1-1build1"
        },
        {
            "binary_name": "libknot1",
            "binary_version": "2.1.1-1build1"
        },
        {
            "binary_name": "libzscanner0",
            "binary_version": "2.1.1-1build1"
        }
    ]
}