UBUNTU-CVE-2016-7431

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Source
https://ubuntu.com/security/CVE-2016-7431
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-7431.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2016-7431
Upstream
Downstream
Related
Withdrawn
2025-07-18T16:43:37Z
Published
2017-01-13T00:00:00Z
Modified
2025-07-16T07:35:02.526381Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

NTP before 4.2.8p9 allows remote attackers to bypass the origin timestamp protection mechanism via an origin timestamp of zero. NOTE: this vulnerability exists because of a CVE-2015-8138 regression.

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_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.10",
            "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"
        }
    ],
    "availability": "No subscription required"
}

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_version": "1:4.2.8p4+dfsg-3ubuntu5.3",
            "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"
        }
    ],
    "availability": "No subscription required"
}