UBUNTU-CVE-2015-1853

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Source
https://ubuntu.com/security/CVE-2015-1853
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-1853.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2015-1853
Related
Published
2019-12-09T19:15:00Z
Modified
2019-12-09T19:15:00Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

chrony before 1.31.1 does not properly protect state variables in authenticated symmetric NTP associations, which allows remote attackers with knowledge of NTP peering to cause a denial of service (inability to synchronize) via random timestamps in crafted NTP data packets.

References

Affected packages

Ubuntu:14.04:LTS / chrony

Package

Name
chrony
Purl
pkg:deb/ubuntu/chrony?arch=src?distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.29-1ubuntu0.1

Affected versions

1.*

1.26-4
1.29-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.29-1ubuntu0.1",
            "binary_name": "chrony"
        },
        {
            "binary_version": "1.29-1ubuntu0.1",
            "binary_name": "chrony-dbgsym"
        }
    ]
}

Ubuntu:16.04:LTS / chrony

Package

Name
chrony
Purl
pkg:deb/ubuntu/chrony?arch=src?distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.1.1-1

Affected versions

1.*

1.30-2
1.31.1-2

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "2.1.1-1",
            "binary_name": "chrony"
        },
        {
            "binary_version": "2.1.1-1",
            "binary_name": "chrony-dbgsym"
        }
    ]
}

Ubuntu:18.04:LTS / chrony

Package

Name
chrony
Purl
pkg:deb/ubuntu/chrony?arch=src?distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.2-4ubuntu1

Affected versions

3.*

3.1-5
3.2-1build1
3.2-1ubuntu3
3.2-2
3.2-2ubuntu2
3.2-2ubuntu3

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "3.2-4ubuntu1",
            "binary_name": "chrony"
        },
        {
            "binary_version": "3.2-4ubuntu1",
            "binary_name": "chrony-dbgsym"
        }
    ]
}