UBUNTU-CVE-2018-7184

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Source
https://ubuntu.com/security/CVE-2018-7184
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-7184.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-7184
Upstream
Downstream
Related
Published
2018-03-06T00:00:00Z
Modified
2025-07-16T07:02:17.247738Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service (disruption) by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the most recent timestamp. This issue is a result of an incomplete fix for CVE-2015-7704.

References

Affected packages

Ubuntu:14.04:LTS / ntp

Package

Name
ntp
Purl
pkg:deb/ubuntu/ntp@1:4.2.6.p5+dfsg-3ubuntu2.14.04.12?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-3ubuntu2.14.04.12

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
1:4.2.6.p5+dfsg-3ubuntu2.14.04.10
1:4.2.6.p5+dfsg-3ubuntu2.14.04.11

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "ntp",
            "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.12"
        },
        {
            "binary_name": "ntp-dbgsym",
            "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.12"
        },
        {
            "binary_name": "ntp-doc",
            "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.12"
        },
        {
            "binary_name": "ntpdate",
            "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.12"
        },
        {
            "binary_name": "ntpdate-dbgsym",
            "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.12"
        }
    ]
}

Ubuntu:16.04:LTS / ntp

Package

Name
ntp
Purl
pkg:deb/ubuntu/ntp@1:4.2.8p4+dfsg-3ubuntu5.8?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.2.8p4+dfsg-3ubuntu5.8

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
1:4.2.8p4+dfsg-3ubuntu5.3
1:4.2.8p4+dfsg-3ubuntu5.4
1:4.2.8p4+dfsg-3ubuntu5.5
1:4.2.8p4+dfsg-3ubuntu5.6
1:4.2.8p4+dfsg-3ubuntu5.7

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "ntp",
            "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.8"
        },
        {
            "binary_name": "ntp-dbgsym",
            "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.8"
        },
        {
            "binary_name": "ntp-doc",
            "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.8"
        },
        {
            "binary_name": "ntpdate",
            "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.8"
        },
        {
            "binary_name": "ntpdate-dbgsym",
            "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.8"
        }
    ]
}

Ubuntu:18.04:LTS / ntp

Package

Name
ntp
Purl
pkg:deb/ubuntu/ntp@1:4.2.8p10+dfsg-5ubuntu7.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.2.8p10+dfsg-5ubuntu7.1

Affected versions

1:4.*

1:4.2.8p10+dfsg-5ubuntu3
1:4.2.8p10+dfsg-5ubuntu4
1:4.2.8p10+dfsg-5ubuntu5
1:4.2.8p10+dfsg-5ubuntu6
1:4.2.8p10+dfsg-5ubuntu7

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "ntp",
            "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.1"
        },
        {
            "binary_name": "ntp-dbgsym",
            "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.1"
        },
        {
            "binary_name": "ntp-doc",
            "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.1"
        },
        {
            "binary_name": "ntpdate",
            "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.1"
        },
        {
            "binary_name": "ntpdate-dbgsym",
            "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.1"
        },
        {
            "binary_name": "sntp",
            "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.1"
        },
        {
            "binary_name": "sntp-dbgsym",
            "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.1"
        }
    ]
}