USN-4969-1

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Source

https://ubuntu.com/security/notices/USN-4969-1

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4969-1.json

JSON Data

https://api.osv.dev/v1/vulns/USN-4969-1

Related

Published

2021-05-27T10:41:47.440182Z

Modified

2021-05-27T10:41:47.440182Z

Summary

isc-dhcp vulnerability

Details

Jon Franklin and Pawel Wieczorkiewicz discovered that DHCP incorrectly handled lease file parsing. A remote attacker could possibly use this issue to cause DHCP to crash, resulting in a denial of service.

References

Affected packages

Ubuntu:18.04:LTS / isc-dhcp

Package

Name: isc-dhcp
Purl: pkg:deb/ubuntu/isc-dhcp?arch=src?distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

4.3.5-3ubuntu7.3

Affected versions

4.*

4.3.5-3ubuntu2

4.3.5-3ubuntu3

4.3.5-3ubuntu4

4.3.5-3ubuntu5

4.3.5-3ubuntu6

4.3.5-3ubuntu7

4.3.5-3ubuntu7.1

4.3.5-3ubuntu7.2

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "4.3.5-3ubuntu7.3",
            "binary_name": "isc-dhcp-client"
        },
        {
            "binary_version": "4.3.5-3ubuntu7.3",
            "binary_name": "isc-dhcp-client-dbgsym"
        },
        {
            "binary_version": "4.3.5-3ubuntu7.3",
            "binary_name": "isc-dhcp-client-ddns"
        },
        {
            "binary_version": "4.3.5-3ubuntu7.3",
            "binary_name": "isc-dhcp-client-ddns-dbgsym"
        },
        {
            "binary_version": "4.3.5-3ubuntu7.3",
            "binary_name": "isc-dhcp-client-udeb"
        },
        {
            "binary_version": "4.3.5-3ubuntu7.3",
            "binary_name": "isc-dhcp-common"
        },
        {
            "binary_version": "4.3.5-3ubuntu7.3",
            "binary_name": "isc-dhcp-dev"
        },
        {
            "binary_version": "4.3.5-3ubuntu7.3",
            "binary_name": "isc-dhcp-relay"
        },
        {
            "binary_version": "4.3.5-3ubuntu7.3",
            "binary_name": "isc-dhcp-relay-dbgsym"
        },
        {
            "binary_version": "4.3.5-3ubuntu7.3",
            "binary_name": "isc-dhcp-server"
        },
        {
            "binary_version": "4.3.5-3ubuntu7.3",
            "binary_name": "isc-dhcp-server-dbgsym"
        },
        {
            "binary_version": "4.3.5-3ubuntu7.3",
            "binary_name": "isc-dhcp-server-ldap"
        },
        {
            "binary_version": "4.3.5-3ubuntu7.3",
            "binary_name": "isc-dhcp-server-ldap-dbgsym"
        }
    ]
}

Ubuntu:20.04:LTS / isc-dhcp

Package

Name: isc-dhcp
Purl: pkg:deb/ubuntu/isc-dhcp?arch=src?distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

4.4.1-2.1ubuntu5.20.04.2

Affected versions

4.*

4.4.1-2ubuntu5

4.4.1-2ubuntu6

4.4.1-2.1ubuntu1

4.4.1-2.1ubuntu2

4.4.1-2.1ubuntu3

4.4.1-2.1ubuntu4

4.4.1-2.1ubuntu5

4.4.1-2.1ubuntu5.20.04.1

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "4.4.1-2.1ubuntu5.20.04.2",
            "binary_name": "isc-dhcp-client"
        },
        {
            "binary_version": "4.4.1-2.1ubuntu5.20.04.2",
            "binary_name": "isc-dhcp-client-dbgsym"
        },
        {
            "binary_version": "4.4.1-2.1ubuntu5.20.04.2",
            "binary_name": "isc-dhcp-client-ddns"
        },
        {
            "binary_version": "4.4.1-2.1ubuntu5.20.04.2",
            "binary_name": "isc-dhcp-client-ddns-dbgsym"
        },
        {
            "binary_version": "4.4.1-2.1ubuntu5.20.04.2",
            "binary_name": "isc-dhcp-client-udeb"
        },
        {
            "binary_version": "4.4.1-2.1ubuntu5.20.04.2",
            "binary_name": "isc-dhcp-common"
        },
        {
            "binary_version": "4.4.1-2.1ubuntu5.20.04.2",
            "binary_name": "isc-dhcp-dev"
        },
        {
            "binary_version": "4.4.1-2.1ubuntu5.20.04.2",
            "binary_name": "isc-dhcp-relay"
        },
        {
            "binary_version": "4.4.1-2.1ubuntu5.20.04.2",
            "binary_name": "isc-dhcp-relay-dbgsym"
        },
        {
            "binary_version": "4.4.1-2.1ubuntu5.20.04.2",
            "binary_name": "isc-dhcp-server"
        },
        {
            "binary_version": "4.4.1-2.1ubuntu5.20.04.2",
            "binary_name": "isc-dhcp-server-dbgsym"
        },
        {
            "binary_version": "4.4.1-2.1ubuntu5.20.04.2",
            "binary_name": "isc-dhcp-server-ldap"
        },
        {
            "binary_version": "4.4.1-2.1ubuntu5.20.04.2",
            "binary_name": "isc-dhcp-server-ldap-dbgsym"
        }
    ]
}