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CVE-2018-7184

Status Candidate

Overview

ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service (disruption) by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the most recent timestamp. This issue is a result of an incomplete fix for CVE-2015-7704.

Related Files

Ubuntu Security Notice USN-3707-1
Posted Jul 9, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3707-1 - Yihan Lian discovered that NTP incorrectly handled certain malformed mode 6 packets. A remote attacker could possibly use this issue to cause ntpd to crash, resulting in a denial of service. This issue only affected Ubuntu 17.10 and Ubuntu 18.04 LTS. Michael Macnair discovered that NTP incorrectly handled certain responses. A remote attacker could possibly use this issue to execute arbitrary code. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2018-7182, CVE-2018-7183, CVE-2018-7184, CVE-2018-7185
MD5 | 0647a8b93bace5ed4b5773148d5efb8f
Gentoo Linux Security Advisory 201805-12
Posted May 26, 2018
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201805-12 - Multiple vulnerabilities have been found in NTP, the worst of which could lead to remote code execution. Versions less than 4.2.8_p11 are affected.

tags | advisory, remote, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2018-7170, CVE-2018-7182, CVE-2018-7183, CVE-2018-7184, CVE-2018-7185
MD5 | 77259e372a957bcaf1ac3604bddef1b9
Slackware Security Advisory - ntp Updates
Posted Mar 1, 2018
Authored by Slackware Security Team | Site slackware.com

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

tags | advisory
systems | linux, slackware
advisories | CVE-2016-1549, CVE-2018-7170, CVE-2018-7182, CVE-2018-7184, CVE-2018-7185
MD5 | 693c481e8bf11a4bfd87dbebee092f80
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