UBUNTU-CVE-2022-3204

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Source
https://ubuntu.com/security/CVE-2022-3204
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-3204.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2022-3204
Related
Published
2022-09-26T14:15:00Z
Modified
2024-10-15T14:09:59Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A vulnerability named 'Non-Responsive Delegation Attack' (NRDelegation Attack) has been discovered in various DNS resolving software. The NRDelegation Attack works by having a malicious delegation with a considerable number of non responsive nameservers. The attack starts by querying a resolver for a record that relies on those unresponsive nameservers. The attack can cause a resolver to spend a lot of time/resources resolving records under a malicious delegation point where a considerable number of unresponsive NS records reside. It can trigger high CPU usage in some resolver implementations that continually look in the cache for resolved NS records in that delegation. This can lead to degraded performance and eventually denial of service in orchestrated attacks. Unbound does not suffer from high CPU usage, but resources are still needed for resolving the malicious delegation. Unbound will keep trying to resolve the record until hard limits are reached. Based on the nature of the attack and the replies, different limits could be reached. From version 1.16.3 on, Unbound introduces fixes for better performance when under load, by cutting opportunistic queries for nameserver discovery and DNSKEY prefetching and limiting the number of times a delegation point can issue a cache lookup for missing records.

References

Affected packages

Ubuntu:Pro:14.04:LTS / unbound

Package

Name
unbound
Purl
pkg:deb/ubuntu/unbound?arch=src?distro=trusty/esm

Affected ranges

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

Affected versions

1.*

1.4.20-1
1.4.21-1
1.4.21-1ubuntu1
1.4.21-1ubuntu2
1.4.22-1ubuntu1
1.4.22-1ubuntu2
1.4.22-1ubuntu3
1.4.22-1ubuntu4
1.4.22-1ubuntu4.14.04.1
1.4.22-1ubuntu4.14.04.2
1.4.22-1ubuntu4.14.04.3
1.4.22-1ubuntu4.14.04.3+esm1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:16.04:LTS / unbound

Package

Name
unbound
Purl
pkg:deb/ubuntu/unbound?arch=src?distro=esm-infra/xenial

Affected ranges

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

Affected versions

1.*

1.4.22-1ubuntu6
1.5.7-1ubuntu1
1.5.7-1ubuntu2
1.5.8-1ubuntu1
1.5.8-1ubuntu1.1
1.5.8-1ubuntu1.1+esm1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:18.04:LTS / unbound

Package

Name
unbound
Purl
pkg:deb/ubuntu/unbound?arch=src?distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.7-1ubuntu2.6

Affected versions

1.*

1.6.5-1
1.6.7-1
1.6.7-1build1
1.6.7-1ubuntu1
1.6.7-1ubuntu2
1.6.7-1ubuntu2.1
1.6.7-1ubuntu2.2
1.6.7-1ubuntu2.3
1.6.7-1ubuntu2.4
1.6.7-1ubuntu2.5

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.6.7-1ubuntu2.6",
            "binary_name": "libunbound-dev"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6",
            "binary_name": "libunbound2"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6",
            "binary_name": "libunbound2-dbgsym"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6",
            "binary_name": "python-unbound"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6",
            "binary_name": "python-unbound-dbgsym"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6",
            "binary_name": "python3-unbound"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6",
            "binary_name": "python3-unbound-dbgsym"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6",
            "binary_name": "unbound"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6",
            "binary_name": "unbound-anchor"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6",
            "binary_name": "unbound-anchor-dbgsym"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6",
            "binary_name": "unbound-dbgsym"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6",
            "binary_name": "unbound-host"
        },
        {
            "binary_version": "1.6.7-1ubuntu2.6",
            "binary_name": "unbound-host-dbgsym"
        }
    ]
}

Ubuntu:20.04:LTS / unbound

Package

Name
unbound
Purl
pkg:deb/ubuntu/unbound?arch=src?distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.9.4-2ubuntu1.4

Affected versions

1.*

1.9.0-2ubuntu1
1.9.0-2ubuntu2
1.9.4-2
1.9.4-2ubuntu1
1.9.4-2ubuntu1.1
1.9.4-2ubuntu1.2
1.9.4-2ubuntu1.3

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.9.4-2ubuntu1.4",
            "binary_name": "libunbound-dev"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.4",
            "binary_name": "libunbound8"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.4",
            "binary_name": "libunbound8-dbgsym"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.4",
            "binary_name": "python-unbound"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.4",
            "binary_name": "python-unbound-dbgsym"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.4",
            "binary_name": "python3-unbound"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.4",
            "binary_name": "python3-unbound-dbgsym"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.4",
            "binary_name": "unbound"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.4",
            "binary_name": "unbound-anchor"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.4",
            "binary_name": "unbound-anchor-dbgsym"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.4",
            "binary_name": "unbound-dbgsym"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.4",
            "binary_name": "unbound-host"
        },
        {
            "binary_version": "1.9.4-2ubuntu1.4",
            "binary_name": "unbound-host-dbgsym"
        }
    ]
}

Ubuntu:22.04:LTS / unbound

Package

Name
unbound
Purl
pkg:deb/ubuntu/unbound?arch=src?distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.13.1-1ubuntu5.3

Affected versions

1.*

1.13.1-1ubuntu1
1.13.1-1ubuntu3
1.13.1-1ubuntu5
1.13.1-1ubuntu5.1
1.13.1-1ubuntu5.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.13.1-1ubuntu5.3",
            "binary_name": "libunbound-dev"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.3",
            "binary_name": "libunbound8"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.3",
            "binary_name": "libunbound8-dbgsym"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.3",
            "binary_name": "python3-unbound"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.3",
            "binary_name": "python3-unbound-dbgsym"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.3",
            "binary_name": "unbound"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.3",
            "binary_name": "unbound-anchor"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.3",
            "binary_name": "unbound-anchor-dbgsym"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.3",
            "binary_name": "unbound-dbgsym"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.3",
            "binary_name": "unbound-host"
        },
        {
            "binary_version": "1.13.1-1ubuntu5.3",
            "binary_name": "unbound-host-dbgsym"
        }
    ]
}