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CVE-2015-5219

Published: 25 August 2015

The ULOGTOD function in ntp.d in SNTP before 4.2.7p366 does not properly perform type conversions from a precision value to a double, which allows remote attackers to cause a denial of service (infinite loop) via a crafted NTP packet.

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
ntp
Launchpad, Ubuntu, Debian
vivid
Released (1:4.2.6.p5+dfsg-3ubuntu6.2)
upstream Needed

precise
Released (1:4.2.6.p3+dfsg-1ubuntu3.6)
trusty
Released (1:4.2.6.p5+dfsg-3ubuntu2.14.04.5)
wily
Released (1:4.2.6.p5+dfsg-3ubuntu8.1)
Patches:
upstream: https://github.com/ntp-project/ntp/commit/5f295cd05c3c136d39f5b3e500a2d781bdbb59c8

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H