ntp security update

4.2.6p5-5.el67.4 - don't accept server/peer packets with zero origin timestamp CVE-2015-8138...

CVE-2016-0727

The crontab script in the ntp package before 1:4.2.6.p3+dfsg-1ubuntu3.11 on Ubuntu 12.04 LTS, before 1:4.2.6.p5+dfsg-3ubuntu2.14.04.10 on Ubuntu 14.04 LTS, on Ubuntu Wily, and before 1:4.2.8p4+dfsg-3ubuntu5.3 on Ubuntu 16.04 LTS allows local users with access to the ntp account to write to...

AIX 7.1 TL 4 : ntp (IV79944) (deprecated)

Network Time Protocol NTP is vulnerable to a denial of service, caused by an error in the sntp program. By sending specially crafted NTP packets, a remote attacker from within the local network could exploit this vulnerability to cause the application to enter into an infinite loop. Network Time...

FreeBSD : ntp -- multiple vulnerabilities (5237f5d7-c020-11e5-b397-d050996490d0)

Network Time Foundation reports : NTF's NTP Project has been notified of the following low- and medium-severity vulnerabilities that are fixed in ntp-4.2.8p6, released on Tuesday, 19 January 2016 : - Bug 2948 / CVE-2015-8158: Potential Infinite Loop in ntpq. Reported by Cisco ASIG. - Bug 2945 /...

AIX 6.1 TL 9 : ntp (IV79942) (deprecated)

Network Time Protocol NTP is vulnerable to a denial of service, caused by an error in the sntp program. By sending specially crafted NTP packets, a remote attacker from within the local network could exploit this vulnerability to cause the application to enter into an infinite loop. Network Time...

AIX 7.2 TL 0 : ntp (IV79945) (deprecated)

Network Time Protocol NTP is vulnerable to a denial of service, caused by an error in the sntp program. By sending specially crafted NTP packets, a remote attacker from within the local network could exploit this vulnerability to cause the application to enter into an infinite loop. Network Time...

AIX 5.3 TL 12 : ntp (IV79946) (deprecated)

Network Time Protocol NTP is vulnerable to a denial of service, caused by an error in the sntp program. By sending specially crafted NTP packets, a remote attacker from within the local network could exploit this vulnerability to cause the application to enter into an infinite loop. Network Time...

AIX 7.1 TL 3 : ntp (IV79943) (deprecated)

The remote AIX host has a version of Network Time Protocol NTP installed that is affected by the following vulnerabilities : - A divide-by-zero error exists in file include/ntp.h when handling LOGTOD and ULOGTOD macros in a crafted NTP packet. An unauthenticated, remote attacker can exploit this,...

Vulnerabilities in NTP affect AIX,Vulnerabilities in NTP affect VIOS

IBM SECURITY ADVISORY First Issued: Thu Jan 21 09:13:20 CST 2016 The most recent version of this document is available here: http://aix.software.ibm.com/aix/efixes/security/ntpadvisory4.asc https://aix.software.ibm.com/aix/efixes/security/ntpadvisory4.asc...

NTP - Local Privilege Escalation

NTP - Local Privilege Escalation Source: http://www.halfdog.net/Security/2015/NtpCronjobUserNtpToRootPrivilegeEscalation/ Introduction Problem description: The cronjob script bundled with ntp package is intended to perform cleanup on statistics files produced by NTP daemon running with statistics...

Network Time Protocol Daemon (ntpd) 3.x / 4.x < 4.2.8p6 Multiple Vulnerabilities

The version of the remote NTP server is 3.x or 4.x prior to 4.2.8p6. It is, therefore, affected by the following vulnerabilities : - A flaw exists in the receive function due to the use of authenticated broadcast mode. A man-in-the-middle attacker can exploit this to conduct a replay attack...

F5 Networks BIG-IP : SNTP vulnerability (K60352002)

SNTP processing would enter into an infinite loop when a crafted NTP packet was received. CVE-2015-5219 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from F5 Networks BIG-IP Solution K60352002. The text description of this plugin is C F5...

NTP - Local Privilege Escalation

Source: http://www.halfdog.net/Security/2015/NtpCronjobUserNtpToRootPrivilegeEscalation/ Introduction Problem description: The cronjob script bundled with ntp package is intended to perform cleanup on statistics files produced by NTP daemon running with statistics enabled. The script is run as ro...

SOL02360853 - NTP vulnerabilities CVE-2015-5194 and CVE-2015-5195

Vulnerability Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Versions known to be not vulnerable column. If the table lists only an older version than what you are...

ntp -- multiple vulnerabilities

Network Time Foundation reports: NTF's NTP Project has been notified of the following low- and medium-severity vulnerabilities that are fixed in ntp-4.2.8p6, released on Tuesday, 19 January 2016: Bug 2948 / CVE-2015-8158: Potential Infinite Loop in ntpq. Reported by Cisco ASIG. Bug 2945 /...

Network Time Protocol Authenticated Preemptable Modes Denial-of-Service Vulnerability

CERT VU357792 Summary Expected Behavior: The protocol should prevent against off-path Denial of Service attacks in authenticated broadcast and other modes which create preemptable associations, such as: multicast client, manycast client, pool client modes, and associations configured with the...

Network Time Protocol Private Mode 'reslist' NULL Pointer Dereference Vulnerability

Summary An unauthenticated ntpdc reslist command can cause a segmentation fault in ntpd by causing a NULL pointer dereference. The following conditions must be met: 1. Mode 7 must be enabled. By default, mode 7 is disabled. 2. A large enough number of entries must exist in the restrict list to...

Network Time Protocol Skeleton Key: Symmetric Authentication Impersonation Vulnerability

CERT VU357792 Summary Symmetric key encryption requires a single trusted key to be specified for each server configuration. A key specified only for one server should only work to authenticate that server, other trusted keys should be refused. Instead we observe that when symmetric key...

Network Time Protocol ntpq Special Character Filtering Vulnerability

Summary The ntpq saveconfig command does not do adequate filtering of special characters from the supplied filename. Only back slash and forward slash are currently filtered out. There are other special characters that are allowed in the filename which can cause issues during globbing. In additio...

Network Time Protocol Private Mode 'reslist' Stack Memory Exhaustion Vulnerability

CERT VU357792 Summary An unauthenticated ntpdc reslist command can cause a segmentation fault in ntpd by exhausting the call stack. The following conditions must be met: 1. Mode 7 must be enabled. By default, mode 7 is disabled. 2. A large enough number of entries must be in the restrict lists to...