UBUNTU-CVE-2018-10920

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Source
https://ubuntu.com/security/CVE-2018-10920
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-10920.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-10920
Upstream
Published
2018-08-02T13:29:00Z
Modified
2025-09-08T16:44:52Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
  • 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Improper input validation bug in DNS resolver component of Knot Resolver before 2.4.1 allows remote attacker to poison cache.

References

Affected packages

Ubuntu:Pro:16.04:LTS / knot-resolver

Package

Name
knot-resolver
Purl
pkg:deb/ubuntu/knot-resolver@1.0.0~beta3-1ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

1.*

1.0.0~beta2-123-g6134920-1
1.0.0~beta3-1
1.0.0~beta3-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.0.0~beta3-1ubuntu0.1~esm1",
            "binary_name": "knot-resolver"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / knot-resolver

Package

Name
knot-resolver
Purl
pkg:deb/ubuntu/knot-resolver@2.1.1-1ubuntu0.1~esm2?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

1.*

1.3.3-1
1.5.0-4
1.5.1-1
1.5.2-1

2.*

2.0.0-3
2.1.0-1
2.1.0-2
2.1.1-1
2.1.1-1ubuntu0.1~esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.1.1-1ubuntu0.1~esm2",
            "binary_name": "knot-resolver"
        },
        {
            "binary_version": "2.1.1-1ubuntu0.1~esm2",
            "binary_name": "knot-resolver-module-http"
        },
        {
            "binary_version": "2.1.1-1ubuntu0.1~esm2",
            "binary_name": "libkres-dev"
        },
        {
            "binary_version": "2.1.1-1ubuntu0.1~esm2",
            "binary_name": "libkres6"
        }
    ]
}