CVE-2016-1550
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
6.3 Medium
AI Score
Confidence
High
0.005 Low
EPSS
Percentile
76.3%
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.
Affected configurations
References
lists.fedoraproject.org/pipermail/package-announce/2016-May/183647.html
lists.fedoraproject.org/pipermail/package-announce/2016-May/184669.html
lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.html
lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.html
lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.html
lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.html
lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html
lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html
lists.opensuse.org/opensuse-updates/2016-05/msg00114.html
packetstormsecurity.com/files/136864/Slackware-Security-Advisory-ntp-Updates.html
rhn.redhat.com/errata/RHSA-2016-1552.html
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160428-ntpd
www.debian.org/security/2016/dsa-3629
www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
www.securityfocus.com/archive/1/538233/100/0/threaded
www.securityfocus.com/archive/1/archive/1/538233/100/0/threaded
www.securityfocus.com/bid/88261
www.securitytracker.com/id/1035705
www.talosintelligence.com/reports/TALOS-2016-0084/
www.ubuntu.com/usn/USN-3096-1
access.redhat.com/errata/RHSA-2016:1141
cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf
cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf
security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc
security.gentoo.org/glsa/201607-15
security.netapp.com/advisory/ntap-20171004-0002/
us-cert.cisa.gov/ics/advisories/icsa-21-103-11
us-cert.cisa.gov/ics/advisories/icsa-21-159-11
www.arista.com/en/support/advisories-notices/security-advisories/1332-security-advisory-19
www.debian.org/security/2016/dsa-3629
www.kb.cert.org/vuls/id/718152
www.talosintelligence.com/vulnerability_reports/TALOS-2016-0084
Related
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
6.3 Medium
AI Score
Confidence
High
0.005 Low
EPSS
Percentile
76.3%