CVE-2016-4954

2016-07-0501:59:00

Debian Security Bug Tracker

security-tracker.debian.org

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.026 Low

EPSS

Percentile

90.3%

JSON

The process_packet function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (peer-variable modification) by sending spoofed packets from many source IP addresses in a certain scenario, as demonstrated by triggering an incorrect leap indication.

OSVersionArchitecturePackageVersionFilename
Debian11allntp< 1:4.2.8p8+dfsg-1ntp_1:4.2.8p8+dfsg-1_all.deb
Debian10allntp< 1:4.2.8p8+dfsg-1ntp_1:4.2.8p8+dfsg-1_all.deb