UBUNTU-CVE-2016-4954

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2016-4954
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-4954.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2016-4954
Related
Published
2016-07-04T00:00:00Z
Modified
2016-07-04T00:00:00Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 4.0 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

The processpacket function in ntpproto.c in ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (peer-variable modification) by sending spoofed packets from many source IP addresses in a certain scenario, as demonstrated by triggering an incorrect leap indication.

References

Affected packages

Ubuntu:14.04:LTS / ntp

Package

Name
ntp
Purl
pkg:deb/ubuntu/ntp?arch=src?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 

{
    "availability": "No subscription required",
    "ubuntu_priority": "low",
    "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"
        }
    ]
}

Ubuntu:16.04:LTS / ntp

Package

Name
ntp
Purl
pkg:deb/ubuntu/ntp?arch=src?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 

{
    "availability": "No subscription required",
    "ubuntu_priority": "low",
    "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"
        }
    ]
}