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CVE-2020-13817

Status Candidate

Overview

ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit or system time change) by predicting transmit timestamps for use in spoofed packets. The victim must be relying on unauthenticated IPv4 time sources. There must be an off-path attacker who can query time from the victim's ntpd instance.

Related Files

Red Hat Security Advisory 2020-2663-01
Posted Jun 23, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-2663-01 - 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. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, protocol
systems | linux, redhat
advisories | CVE-2020-11868, CVE-2020-13817
MD5 | 5c28f5def4331b8a31162ae1752ed043
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