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CVE-2017-6463

Status Candidate

Overview

NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote authenticated users to cause a denial of service (daemon crash) via an invalid setting in a :config directive, related to the unpeer option.

Related Files

Red Hat Security Advisory 2017-3071-01
Posted Oct 26, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-3071-01 - The Network Time Protocol is used to synchronize a computer's time with another referenced time source. These packages include the ntpd service which continuously adjusts system time and utilities used to query and configure the ntpd service. Security Fix: Two vulnerabilities were discovered in the NTP server's parsing of configuration directives. A remote, authenticated attacker could cause ntpd to crash by sending a crafted message.

tags | advisory, remote, vulnerability, protocol
systems | linux, redhat
advisories | CVE-2017-6462, CVE-2017-6463, CVE-2017-6464
MD5 | 366851a24a420e6f5970fdec993b2ae1
Apple Security Advisory 2017-09-25-1
Posted Sep 28, 2017
Authored by Apple | Site apple.com

Apple Security Advisory 2017-09-25-1 - macOS High Sierra 10.13 is now available and addresses denial of service, insecure transit, and various other vulnerabilities.

tags | advisory, denial of service, vulnerability
systems | apple
advisories | CVE-2016-9042, CVE-2016-9063, CVE-2016-9840, CVE-2016-9841, CVE-2016-9842, CVE-2016-9843, CVE-2017-0381, CVE-2017-1000373, CVE-2017-10989, CVE-2017-11103, CVE-2017-6451, CVE-2017-6452, CVE-2017-6455, CVE-2017-6458, CVE-2017-6459, CVE-2017-6460, CVE-2017-6462, CVE-2017-6463, CVE-2017-6464, CVE-2017-7074, CVE-2017-7077, CVE-2017-7078, CVE-2017-7080, CVE-2017-7082, CVE-2017-7083, CVE-2017-7084, CVE-2017-7086, CVE-2017-7114
MD5 | afcf3a39067601a76d9858d678ec3ae1
Ubuntu Security Notice USN-3349-1
Posted Jul 6, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3349-1 - Yihan Lian discovered that NTP incorrectly handled certain large request data values. A remote attacker could possibly use this issue to cause NTP to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS. Miroslav Lichvar discovered that NTP incorrectly handled certain spoofed addresses when performing rate limiting. A remote attacker could possibly use this issue to perform a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 16.10. Various other issues were also addressed.

tags | advisory, remote, denial of service, spoof
systems | linux, ubuntu
advisories | CVE-2016-2519, CVE-2016-7426, CVE-2016-7427, CVE-2016-7428, CVE-2016-7429, CVE-2016-7431, CVE-2016-7433, CVE-2016-7434, CVE-2016-9042, CVE-2016-9310, CVE-2016-9311, CVE-2017-6458, CVE-2017-6460, CVE-2017-6462, CVE-2017-6463, CVE-2017-6464
MD5 | f7f3fa44faf862974b40f78bbb8b5cbc
Slackware Security Advisory - ntp Updates
Posted Apr 24, 2017
Authored by Slackware Security Team | Site slackware.com

Slackware Security Advisory - New ntp packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, 14.2, and -current to fix security issues.

tags | advisory
systems | linux, slackware
advisories | CVE-2016-9042, CVE-2017-6451, CVE-2017-6452, CVE-2017-6455, CVE-2017-6458, CVE-2017-6459, CVE-2017-6460, CVE-2017-6462, CVE-2017-6463, CVE-2017-6464
MD5 | a8061b82e5a9f82c824a7ab0844afd3e
FreeBSD Security Advisory - FreeBSD-SA-17:03.ntp
Posted Apr 12, 2017
Authored by Network Time Foundation | Site security.freebsd.org

FreeBSD Security Advisory - A vulnerability was discovered in the NTP server's parsing of configuration directives. A vulnerability was found in NTP, in the parsing of packets from the DPTS Clock. A vulnerability was discovered in the NTP server's parsing of configuration directives. A vulnerability was found in NTP, affecting the origin timestamp check function. A remote, authenticated attacker could cause ntpd to crash by sending a crafted message. A malicious device could send crafted messages, causing ntpd to crash. An attacker able to spoof messages from all of the configured peers could send crafted packets to ntpd, causing later replies from those peers to be discarded, resulting in denial of service.

tags | advisory, remote, denial of service, spoof
systems | freebsd, bsd
advisories | CVE-2016-9042, CVE-2017-6462, CVE-2017-6463, CVE-2017-6464
MD5 | c169a99d362c1ddf8d4e9d7e28573bae
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