CVE-2016-4957

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Summary

CVECVE-2016-4957
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-07-05 01:59:04 UTC
Updated2026-05-06 22:30:45 UTC
Descriptionntpd 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-476 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Novell Suse Manager 2.1 All All All
Application Ntp Ntp 4.2.8 p7 All All
Application Ntp Ntp 4.3.92 All All All
Operating System Opensuse Leap 42.1 All All All
Operating System Opensuse Opensuse 13.2 All All All
Operating System Oracle Solaris 10 All All All
Operating System Oracle Solaris 11.3 All All All
Operating System Suse Linux Enterprise Desktop 12 sp1 All All
Operating System Suse Linux Enterprise Server 11 sp2 All All
Operating System Suse Linux Enterprise Server 11 sp3 All All
Operating System Suse Linux Enterprise Server 11 sp4 All All
Operating System Suse Linux Enterprise Server 12 sp1 All All
Application Suse Manager Proxy 2.1 All All All
Application Suse Openstack Cloud 5 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
[security-announce] SUSE-SU-2016:1563-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
security.FreeBSD.org/advisories/FreeBSD-SA-16:24.ntp.asc af854a3a-2127-422b-91ae-364da2661108 security.FreeBSD.org Third Party Advisory
support.ntp.org/bin/view/Main/NtpBug3046 af854a3a-2127-422b-91ae-364da2661108 support.ntp.org Patch, Vendor Advisory
[security-announce] SUSE-SU-2016:1584-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
[security-announce] SUSE-SU-2016:1602-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
NTP: Multiple vulnerabilities (GLSA 201607-15) — Gentoo Security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org Third Party Advisory
Vulnerability Note VU#321640 - NTP.org ntpd is vulnerable to denial of service and other vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.kb.cert.org Third Party Advisory, US Government Resource
support.ntp.org/bin/view/Main/SecurityNotice af854a3a-2127-422b-91ae-364da2661108 support.ntp.org Release Notes, Vendor Advisory
ntp Multiple Bugs Let Remote Users Modify Parameters and Deny Service - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory, VDB Entry
Bug 3046 – CRYPTO_NAK crash af854a3a-2127-422b-91ae-364da2661108 bugs.ntp.org Issue Tracking, Vendor Advisory
[security-announce] openSUSE-SU-2016:1636-1: important: Security update af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
[security-announce] openSUSE-SU-2016:1583-1: important: Security update af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
Oracle Solaris Bulletin - April 2016 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 690292 Free Berkeley Software Distribution (FreeBSD) Security Update for FreeBSD (7cfcea05-600a-11e6-a6c3-14dae9d210b8)
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