ID de Prueba:	1.3.6.1.4.1.25623.1.0.120716
Categoría:	Amazon Linux Local Security Checks
Título:	Amazon Linux: Security Advisory (ALAS-2016-727)
Resumen:	The remote host is missing an update for the 'ntp' package(s) announced via the ALAS-2016-727 advisory.
Descripción:	Summary: The remote host is missing an update for the 'ntp' package(s) announced via the ALAS-2016-727 advisory. Vulnerability Insight: It was discovered that ntpq and ntpdc disclosed the origin timestamp to unauthenticated clients, which could permit such clients to forge the server's replies. (CVE-2015-8139) The process_packet function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (peer-variable modification) by sending spoofed packets from many source IP addresses in a certain scenario, as demonstrated by triggering an incorrect leap indication. (CVE-2016-4954) ntpd in NTP 4.x before 4.2.8p8, when autokey is enabled, allows remote attackers to cause a denial of service (peer-variable clearing and association outage) by sending (1) a spoofed crypto-NAK packet or (2) a packet with an incorrect MAC value at a certain time. (CVE-2016-4955) ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (interleaved-mode transition and time change) via a spoofed broadcast packet. This vulnerability exists because of an incomplete fix for CVE-2016-1548. (CVE-2016-4956) Affected Software/OS: 'ntp' package(s) on Amazon Linux. Solution: Please install the updated package(s). CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2015-8139 BugTraq ID: 82105 http://www.securityfocus.com/bid/82105 CERT/CC vulnerability note: VU#718152 https://www.kb.cert.org/vuls/id/718152 Cisco Security Advisory: 20160120 Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products - January 2016 http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpd https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K3EYJQHJZ2KTVQ7ICEFHXTLZ36MRASWX/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ORAMN3Q7TVJ54MBYF75XCJOE3DP7LYHT/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WNWGCQLW2VY72NIUYMJOCAKJKTXHDUK2/ FreeBSD Security Advisory: FreeBSD-SA-16:24 https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc https://security.gentoo.org/glsa/201607-15 http://www.securitytracker.com/id/1034782 SuSE Security Announcement: SUSE-SU-2016:1175 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html SuSE Security Announcement: SUSE-SU-2016:1177 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html SuSE Security Announcement: SUSE-SU-2016:1247 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html SuSE Security Announcement: SUSE-SU-2016:1311 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html SuSE Security Announcement: openSUSE-SU-2016:1292 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html SuSE Security Announcement: openSUSE-SU-2016:1423 (Google Search) http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html Common Vulnerability Exposure (CVE) ID: CVE-2016-4954 Bugtraq: 20160604 FreeBSD Security Advisory FreeBSD-SA-16:24.ntp (Google Search) http://www.securityfocus.com/archive/1/538600/100/0/threaded http://www.securityfocus.com/archive/1/archive/1/538600/100/0/threaded Bugtraq: 20160604 [slackware-security] ntp (SSA:2016-155-01) (Google Search) http://www.securityfocus.com/archive/1/538599/100/0/threaded http://www.securityfocus.com/archive/1/archive/1/538599/100/0/threaded Bugtraq: 20170607 [security bulletin] HPESBHF03757 rev.1 - HPE Network Products including Comware 5 and Comware 7 running NTP, Remote Denial of Service (DoS) (Google Search) http://www.securityfocus.com/archive/1/540683/100/0/threaded http://www.securityfocus.com/archive/1/archive/1/540683/100/0/threaded CERT/CC vulnerability note: VU#321640 http://www.kb.cert.org/vuls/id/321640 https://www.kb.cert.org/vuls/id/321640 Cisco Security Advisory: 20160603 Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products: June 2016 http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160603-ntpd https://security.FreeBSD.org/advisories/FreeBSD-SA-16:24.ntp.asc http://packetstormsecurity.com/files/137321/Slackware-Security-Advisory-ntp-Updates.html http://packetstormsecurity.com/files/137322/FreeBSD-Security-Advisory-FreeBSD-SA-16-24.ntp.html https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11 http://www.securitytracker.com/id/1036037 SuSE Security Announcement: SUSE-SU-2016:1563 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.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-2016:1584 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html SuSE Security Announcement: SUSE-SU-2016:1602 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.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-2016:1583 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html SuSE Security Announcement: openSUSE-SU-2016:1636 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html http://www.ubuntu.com/usn/USN-3096-1 Common Vulnerability Exposure (CVE) ID: CVE-2016-4955 BugTraq ID: 91007 http://www.securityfocus.com/bid/91007 Common Vulnerability Exposure (CVE) ID: CVE-2016-4956 BugTraq ID: 91009 http://www.securityfocus.com/bid/91009
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