CVE-2016-4957

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
ntpd in NTP before 4.2.8p8 allows remote attackers to cause a denial of service (daemon crash) via a crypto-NAK packet. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-1547.
Overview
  • CVE ID
  • CVE-2016-4957
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2016-07-05T01:59:04
  • Last Modified Date
  • 2020-06-18T18:07:29
Weakness Enumerations
CWE URL
CWE-476 http://cwe.mitre.org/data/definitions/476.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:ntp:ntp:4.2.8:p7:*:*:*:*:*:* 1 OR
cpe:2.3:a:ntp:ntp:4.3.92:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:oracle:solaris:10:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:suse:manager_proxy:2.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:suse:openstack_cloud:5:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:novell:suse_manager:2.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:suse:linux_enterprise_desktop:12:sp1:*:*:*:*:*:* 1 OR
cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:ltss:*:*:* 1 OR
cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:ltss:*:*:* 1 OR
cpe:2.3:o:suse:linux_enterprise_server:11:sp4:*:*:*:*:*:* 1 OR
cpe:2.3:o:suse:linux_enterprise_server:12:sp1:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
http://bugs.ntp.org/3046 Issue Tracking Vendor Advisory
http://www.kb.cert.org/vuls/id/321640 Third Party Advisory US Government Resource
http://support.ntp.org/bin/view/Main/NtpBug3046 Patch Vendor Advisory
http://support.ntp.org/bin/view/Main/SecurityNotice Release Notes Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html Mailing List Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory
https://security.gentoo.org/glsa/201607-15 Third Party Advisory
http://www.securitytracker.com/id/1036037 Third Party Advisory VDB Entry
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:24.ntp.asc Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2016-4957
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4957
History
Created Old Value New Value Data Type Notes
2022-05-10 16:42:23 Added to TrackCVE
2022-12-02 10:11:39 2016-07-05T01:59Z 2016-07-05T01:59:04 CVE Published Date updated
2022-12-02 10:11:39 2020-06-18T18:07:29 CVE Modified Date updated
2022-12-02 10:11:39 Analyzed Vulnerability Status updated