CVE-2016-9042

2018-06-0420:29:00

Debian Security Bug Tracker

security-tracker.debian.org

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.02 Low

EPSS

Percentile

88.8%

JSON

An exploitable denial of service vulnerability exists in the origin timestamp check functionality of ntpd 4.2.8p9. A specially crafted unauthenticated network packet can be used to reset the expected origin timestamp for target peers. Legitimate replies from targeted peers will fail the origin timestamp check (TEST2) causing the reply to be dropped and creating a denial of service condition.

OSVersionArchitecturePackageVersionFilename
Debian11allntp< 1:4.2.8p10+dfsg-1ntp_1:4.2.8p10+dfsg-1_all.deb
Debian10allntp< 1:4.2.8p10+dfsg-1ntp_1:4.2.8p10+dfsg-1_all.deb