UBUNTU-CVE-2016-1547

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2016-1547
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-1547.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2016-1547
Related
Published
2016-04-29T00:00:00Z
Modified
2025-01-13T10:21:12Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

An off-path attacker can cause a preemptible client association to be demobilized in NTP 4.2.8p4 and earlier and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 by sending a crypto NAK packet to a victim client with a spoofed source address of an existing associated peer. This is true even if authentication is enabled.

References

Affected packages

Ubuntu:14.04:LTS / ntp

Package

Name
ntp
Purl
pkg:deb/ubuntu/ntp@1:4.2.6.p5+dfsg-3ubuntu2.14.04.10?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.2.6.p5+dfsg-3ubuntu2.14.04.10

Affected versions

1:4.*

1:4.2.6.p5+dfsg-3ubuntu2
1:4.2.6.p5+dfsg-3ubuntu2.14.04.1
1:4.2.6.p5+dfsg-3ubuntu2.14.04.2
1:4.2.6.p5+dfsg-3ubuntu2.14.04.3
1:4.2.6.p5+dfsg-3ubuntu2.14.04.5
1:4.2.6.p5+dfsg-3ubuntu2.14.04.6
1:4.2.6.p5+dfsg-3ubuntu2.14.04.7
1:4.2.6.p5+dfsg-3ubuntu2.14.04.8

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ntp",
            "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.10"
        },
        {
            "binary_name": "ntp-dbgsym",
            "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.10"
        },
        {
            "binary_name": "ntp-doc",
            "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.10"
        },
        {
            "binary_name": "ntpdate",
            "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.10"
        },
        {
            "binary_name": "ntpdate-dbgsym",
            "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.10"
        }
    ],
    "availability": "No subscription required",
    "ubuntu_priority": "medium"
}

Ubuntu:16.04:LTS / ntp

Package

Name
ntp
Purl
pkg:deb/ubuntu/ntp@1:4.2.8p4+dfsg-3ubuntu5.3?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.2.8p4+dfsg-3ubuntu5.3

Affected versions

1:4.*

1:4.2.6.p5+dfsg-3ubuntu8
1:4.2.6.p5+dfsg-3ubuntu8.1
1:4.2.6.p5+dfsg-3ubuntu9
1:4.2.8p4+dfsg-3ubuntu1
1:4.2.8p4+dfsg-3ubuntu2
1:4.2.8p4+dfsg-3ubuntu3
1:4.2.8p4+dfsg-3ubuntu4
1:4.2.8p4+dfsg-3ubuntu5
1:4.2.8p4+dfsg-3ubuntu5.1
1:4.2.8p4+dfsg-3ubuntu5.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ntp",
            "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.3"
        },
        {
            "binary_name": "ntp-dbgsym",
            "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.3"
        },
        {
            "binary_name": "ntp-doc",
            "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.3"
        },
        {
            "binary_name": "ntpdate",
            "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.3"
        },
        {
            "binary_name": "ntpdate-dbgsym",
            "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.3"
        }
    ],
    "availability": "No subscription required",
    "ubuntu_priority": "medium"
}