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CVE-2016-7427

Status Candidate

Overview

The broadcast mode replay prevention functionality in ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (reject broadcast mode packets) via a crafted broadcast mode packet.

Related Files

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
HP Security Bulletin HPESBUX03706 1
Posted Mar 12, 2017
Authored by HP | Site hp.com

HP Security Bulletin HPESBUX03706 1 - Potential security vulnerabilities have been identified in the HP-UX-NTP service running ntpd. These vulnerabilities could be exploited remotely to allow a denial of service (DoS), unauthorized modification, and access restriction bypass. Revision 1 of this advisory.

tags | advisory, denial of service, vulnerability
systems | hpux
advisories | CVE-2016-7426, CVE-2016-7427, CVE-2016-7428, CVE-2016-7429, CVE-2016-7431, CVE-2016-7433, CVE-2016-7434, CVE-2016-9310, CVE-2016-9311
MD5 | 306b728da60c9fcd8841d044fe0cd334
FreeBSD Security Advisory - FreeBSD-SA-16.39.ntp
Posted Dec 21, 2016
Authored by Network Time Foundation | Site security.freebsd.org

FreeBSD Security Advisory - Multiple vulnerabilities have been discovered in the NTP suite.

tags | advisory, vulnerability
systems | freebsd, bsd
advisories | CVE-2016-7426, CVE-2016-7427, CVE-2016-7428, CVE-2016-7431
MD5 | 758701c6c332f8937e8764717b895f4a
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