Test ID:	1.3.6.1.4.1.25623.1.0.120697
Category:	Amazon Linux Local Security Checks
Title:	Amazon Linux: Security Advisory (ALAS-2016-708)
Summary:	The remote host is missing an update for the 'ntp' package(s) announced via the ALAS-2016-708 advisory.
Description:	Summary: The remote host is missing an update for the 'ntp' package(s) announced via the ALAS-2016-708 advisory. Vulnerability Insight: It was found that an ntpd client could be forced to change from basic client/server mode to the interleaved symmetric mode. A remote attacker could use a spoofed packet that, when processed by an ntpd client, would cause that client to reject all future legitimate server responses, effectively disabling time synchronization on that client. (CVE-2016-1548) An out-of-bounds access flaw was found in the way ntpd processed certain packets. An authenticated attacker could use a crafted packet to create a peer association with hmode of 7 and larger, which could potentially (although highly unlikely) cause ntpd to crash. (CVE-2016-2518) A flaw was found in the way libntp performed message authentication. An attacker able to observe the timing of the comparison function used in packet authentication could potentially use this flaw to recover the message digest. (CVE-2016-1550) Assertion failure in ntpd on duplicate IPs on unconfig directives (CVE-2016-2516) Affected Software/OS: 'ntp' package(s) on Amazon Linux. Solution: Please install the updated package(s). CVSS Score: 7.1 CVSS Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2016-1548 BugTraq ID: 88264 http://www.securityfocus.com/bid/88264 Bugtraq: 20160429 [slackware-security] ntp (SSA:2016-120-01) (Google Search) http://www.securityfocus.com/archive/1/538233/100/0/threaded http://www.securityfocus.com/archive/1/archive/1/538233/100/0/threaded CERT/CC vulnerability note: VU#718152 https://www.kb.cert.org/vuls/id/718152 Cisco Security Advisory: 20160428 Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products: April 2016 http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160428-ntpd Debian Security Information: DSA-3629 (Google Search) http://www.debian.org/security/2016/dsa-3629 https://www.debian.org/security/2016/dsa-3629 http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184669.html http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183647.html FreeBSD Security Advisory: FreeBSD-SA-16:16 https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc https://security.gentoo.org/glsa/201607-15 http://packetstormsecurity.com/files/136864/Slackware-Security-Advisory-ntp-Updates.html http://www.talosintelligence.com/reports/TALOS-2016-0082/ https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11 https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11 https://www.arista.com/en/support/advisories-notices/security-advisories/1332-security-advisory-19 https://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0082 RedHat Security Advisories: RHSA-2016:1141 https://access.redhat.com/errata/RHSA-2016:1141 RedHat Security Advisories: RHSA-2016:1552 http://rhn.redhat.com/errata/RHSA-2016-1552.html http://www.securitytracker.com/id/1035705 SuSE Security Announcement: SUSE-SU-2016:1278 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.html SuSE Security Announcement: SUSE-SU-2016:1291 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.html SuSE Security Announcement: SUSE-SU-2016:1471 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.html SuSE Security Announcement: SUSE-SU-2016:1568 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html SuSE Security Announcement: SUSE-SU-2016:1912 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html SuSE Security Announcement: SUSE-SU-2016:2094 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html SuSE Security Announcement: openSUSE-SU-2016:1329 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.html SuSE Security Announcement: openSUSE-SU-2016:1423 (Google Search) http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html http://www.ubuntu.com/usn/USN-3096-1 Common Vulnerability Exposure (CVE) ID: CVE-2016-1550 BugTraq ID: 88261 http://www.securityfocus.com/bid/88261 http://www.talosintelligence.com/reports/TALOS-2016-0084/ https://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0084 Common Vulnerability Exposure (CVE) ID: CVE-2016-2516 BugTraq ID: 88180 http://www.securityfocus.com/bid/88180 Common Vulnerability Exposure (CVE) ID: CVE-2016-2518 BugTraq ID: 88226 http://www.securityfocus.com/bid/88226
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