UBUNTU-CVE-2022-0934

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Source
https://ubuntu.com/security/CVE-2022-0934
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-0934.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2022-0934
Related
Published
2022-04-07T00:00:00Z
Modified
2025-06-11T09:57:40Z
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
  • 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 single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service.

References

Affected packages

Ubuntu:Pro:14.04:LTS / dnsmasq

Package

Name
dnsmasq
Purl
pkg:deb/ubuntu/dnsmasq@2.68-1ubuntu0.2+esm1?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.68-1ubuntu0.2+esm1

Affected versions

2.*

2.66-4ubuntu1
2.67-1
2.68-1
2.68-1ubuntu0.1
2.68-1ubuntu0.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "dnsmasq",
            "binary_version": "2.68-1ubuntu0.2+esm1"
        },
        {
            "binary_name": "dnsmasq-base",
            "binary_version": "2.68-1ubuntu0.2+esm1"
        },
        {
            "binary_name": "dnsmasq-utils",
            "binary_version": "2.68-1ubuntu0.2+esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:16.04:LTS / dnsmasq

Package

Name
dnsmasq
Purl
pkg:deb/ubuntu/dnsmasq@2.75-1ubuntu0.16.04.10+esm1?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.75-1ubuntu0.16.04.10+esm1

Affected versions

2.*

2.75-1
2.75-1ubuntu0.16.04.1
2.75-1ubuntu0.16.04.2
2.75-1ubuntu0.16.04.3
2.75-1ubuntu0.16.04.4
2.75-1ubuntu0.16.04.5
2.75-1ubuntu0.16.04.7
2.75-1ubuntu0.16.04.8
2.75-1ubuntu0.16.04.10

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "dnsmasq",
            "binary_version": "2.75-1ubuntu0.16.04.10+esm1"
        },
        {
            "binary_name": "dnsmasq-base",
            "binary_version": "2.75-1ubuntu0.16.04.10+esm1"
        },
        {
            "binary_name": "dnsmasq-utils",
            "binary_version": "2.75-1ubuntu0.16.04.10+esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "ubuntu_priority": "medium"
}

Ubuntu:18.04:LTS / dnsmasq

Package

Name
dnsmasq
Purl
pkg:deb/ubuntu/dnsmasq@2.79-1ubuntu0.6?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.79-1ubuntu0.6

Affected versions

2.*

2.78-1
2.78-3
2.79-1
2.79-1ubuntu0.2
2.79-1ubuntu0.3
2.79-1ubuntu0.4
2.79-1ubuntu0.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "dnsmasq",
            "binary_version": "2.79-1ubuntu0.6"
        },
        {
            "binary_name": "dnsmasq-base",
            "binary_version": "2.79-1ubuntu0.6"
        },
        {
            "binary_name": "dnsmasq-base-lua",
            "binary_version": "2.79-1ubuntu0.6"
        },
        {
            "binary_name": "dnsmasq-utils",
            "binary_version": "2.79-1ubuntu0.6"
        }
    ],
    "availability": "No subscription required",
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / dnsmasq

Package

Name
dnsmasq
Purl
pkg:deb/ubuntu/dnsmasq@2.80-1.1ubuntu1.5?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.80-1.1ubuntu1.5

Affected versions

2.*

2.80-1ubuntu2
2.80-1ubuntu4
2.80-1.1ubuntu1
2.80-1.1ubuntu1.2
2.80-1.1ubuntu1.3
2.80-1.1ubuntu1.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "dnsmasq",
            "binary_version": "2.80-1.1ubuntu1.5"
        },
        {
            "binary_name": "dnsmasq-base",
            "binary_version": "2.80-1.1ubuntu1.5"
        },
        {
            "binary_name": "dnsmasq-base-lua",
            "binary_version": "2.80-1.1ubuntu1.5"
        },
        {
            "binary_name": "dnsmasq-utils",
            "binary_version": "2.80-1.1ubuntu1.5"
        }
    ],
    "availability": "No subscription required",
    "ubuntu_priority": "medium"
}

Ubuntu:22.04:LTS / dnsmasq

Package

Name
dnsmasq
Purl
pkg:deb/ubuntu/dnsmasq@2.86-1.1ubuntu0.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.86-1.1ubuntu0.1

Affected versions

2.*

2.85-1ubuntu2
2.86-1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "dnsmasq",
            "binary_version": "2.86-1.1ubuntu0.1"
        },
        {
            "binary_name": "dnsmasq-base",
            "binary_version": "2.86-1.1ubuntu0.1"
        },
        {
            "binary_name": "dnsmasq-base-lua",
            "binary_version": "2.86-1.1ubuntu0.1"
        },
        {
            "binary_name": "dnsmasq-utils",
            "binary_version": "2.86-1.1ubuntu0.1"
        }
    ],
    "availability": "No subscription required",
    "ubuntu_priority": "medium"
}