USN-5175-1

It was discovered that ntpd incorrectly handled memory when CMAC keys were used. A remote attacker could possibly use this issue to cause ntpd to crash resulting in a denial of service.

References

Affected packages

Ubuntu:Pro:20.04:LTS / ntp

Package

Name: ntp
Purl: pkg:deb/ubuntu/ntp@1:4.2.8p12+dfsg-3ubuntu4.20.04.1+esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:4.2.8p12+dfsg-3ubuntu4.20.04.1+esm1

Affected versions

1:4.*

1:4.2.8p12+dfsg-3ubuntu2

1:4.2.8p12+dfsg-3ubuntu3

1:4.2.8p12+dfsg-3ubuntu4

1:4.2.8p12+dfsg-3ubuntu4.20.04.1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "ntp",
            "binary_version": "1:4.2.8p12+dfsg-3ubuntu4.20.04.1+esm1"
        },
        {
            "binary_name": "ntpdate",
            "binary_version": "1:4.2.8p12+dfsg-3ubuntu4.20.04.1+esm1"
        },
        {
            "binary_name": "sntp",
            "binary_version": "1:4.2.8p12+dfsg-3ubuntu4.20.04.1+esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:20.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2020-15025"
        }
    ]
}