UBUNTU-CVE-2020-15025

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Source
https://ubuntu.com/security/CVE-2020-15025
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-15025.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2020-15025
Upstream
Downstream
Related
Withdrawn
2025-10-07T04:47:32Z
Published
2020-06-24T19:15:00Z
Modified
2025-09-08T16:46:13Z
Severity
  • 4.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

ntpd in ntp 4.2.8 before 4.2.8p15 and 4.3.x before 4.3.101 allows remote attackers to cause a denial of service (memory consumption) by sending packets, because memory is not freed in situations where a CMAC key is used and associated with a CMAC algorithm in the ntp.keys file.

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_version": "1:4.2.8p12+dfsg-3ubuntu4.20.04.1+esm1",
            "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"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}