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CVE-2016-7434

Status Candidate

Overview

The read_mru_list function in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (crash) via a crafted mrulist query.

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
ntpd 4.2.7.p22 / 4.3.0 Denial Of Service
Posted Nov 22, 2016
Authored by Magnus Klaaborg Stubman

ntpd versions 4.2.7p22 up to but not including 4.2.8p9 and 4.3.0 up to, but not including 4.3.94 suffer from a remote denial of service vulnerability. The vulnerability allow unauthenticated users to crash ntpd with a single malformed UDP packet, which cause a null pointer dereference.

tags | exploit, remote, denial of service, udp
advisories | CVE-2016-7434
MD5 | be759033c96dac4a8b8ca928858c34f1
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