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CVE-2019-6442

Published: 16 January 2019

An issue was discovered in NTPsec before 1.1.3. An authenticated attacker can write one byte out of bounds in ntpd via a malformed config request, related to config_remotely in ntp_config.c, yyparse in ntp_parser.tab.c, and yyerror in ntp_parser.y.

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
ntpsec
Launchpad, Ubuntu, Debian
upstream
Released (1.1.3+dfsg1-1)
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (1.1.0+dfsg1-1ubuntu0.2)
cosmic
Released (1.1.1+dfsg1-2ubuntu0.1)

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H