Medium severity5.3NVD Advisory· Published Jan 6, 2017· Updated Jun 17, 2026
CVE-2016-1550
CVE-2016-1550
Description
An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4.2.8p4 and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. An attacker can send a series of crafted messages to attempt to recover the message digest key.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
19- osv-coords15 versionspkg:rpm/opensuse/ntp&distro=openSUSE%20Tumbleweedpkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Desktop%2012pkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1pkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP2-LTSSpkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATApkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%2012pkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1pkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012pkg:rpm/suse/ntp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/ntp&distro=SUSE%20Manager%202.1pkg:rpm/suse/ntp&distro=SUSE%20Manager%20Proxy%202.1pkg:rpm/suse/ntp&distro=SUSE%20OpenStack%20Cloud%205
< 4.2.8p9-1.1+ 14 more
- (no CPE)range: < 4.2.8p9-1.1
- (no CPE)range: < 4.2.8p8-46.8.1
- (no CPE)range: < 4.2.8p7-11.1
- (no CPE)range: < 4.2.8p7-44.1
- (no CPE)range: < 4.2.8p7-44.1
- (no CPE)range: < 4.2.8p7-44.1
- (no CPE)range: < 4.2.8p7-11.1
- (no CPE)range: < 4.2.8p8-46.8.1
- (no CPE)range: < 4.2.8p7-11.1
- (no CPE)range: < 4.2.8p7-11.1
- (no CPE)range: < 4.2.8p8-46.8.1
- (no CPE)range: < 4.2.8p7-11.1
- (no CPE)range: < 4.2.8p7-44.1
- (no CPE)range: < 4.2.8p7-44.1
- (no CPE)range: < 4.2.8p7-44.1
- NTP Project/NTPv5Range: 4.2.8p3
- NTPsec Project/NTPSecv5Range: a5fb34b9cc89b92a8fef2f459004865c93bb7f92
Patches
Vulnerability mechanics
References
34- www.talosintelligence.com/reports/TALOS-2016-0084/nvdTechnical DescriptionThird Party Advisory
- lists.fedoraproject.org/pipermail/package-announce/2016-May/183647.htmlnvd
- lists.fedoraproject.org/pipermail/package-announce/2016-May/184669.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.htmlnvd
- lists.opensuse.org/opensuse-updates/2016-05/msg00114.htmlnvd
- packetstormsecurity.com/files/136864/Slackware-Security-Advisory-ntp-Updates.htmlnvd
- rhn.redhat.com/errata/RHSA-2016-1552.htmlnvd
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160428-ntpdnvd
- www.debian.org/security/2016/dsa-3629nvd
- www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlnvd
- www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlnvd
- www.securityfocus.com/archive/1/538233/100/0/threadednvd
- www.securityfocus.com/archive/1/archive/1/538233/100/0/threadednvd
- www.securityfocus.com/bid/88261nvd
- www.securitytracker.com/id/1035705nvd
- www.ubuntu.com/usn/USN-3096-1nvd
- access.redhat.com/errata/RHSA-2016:1141nvd
- cert-portal.siemens.com/productcert/pdf/ssa-211752.pdfnvd
- cert-portal.siemens.com/productcert/pdf/ssa-497656.pdfnvd
- security.freebsd.org/advisories/FreeBSD-SA-16:16.ntp.ascnvd
- security.gentoo.org/glsa/201607-15nvd
- security.netapp.com/advisory/ntap-20171004-0002/nvd
- us-cert.cisa.gov/ics/advisories/icsa-21-103-11nvd
- us-cert.cisa.gov/ics/advisories/icsa-21-159-11nvd
- www.arista.com/en/support/advisories-notices/security-advisories/1332-security-advisory-19nvd
- www.debian.org/security/2016/dsa-3629nvd
- www.kb.cert.org/vuls/id/718152nvd
- www.talosintelligence.com/vulnerability_reports/TALOS-2016-0084nvd
News mentions
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