CVE-2016-7426

MEDIUM

Description

NTP before 4.2.8p9 rate limits responses received from the configured sources when rate limiting for all associations is enabled, which allows remote attackers to cause a denial of service (prevent responses from the sources) by sending responses with a spoofed source address.

References

http://nwtime.org/ntp428p9_release/

http://rhn.redhat.com/errata/RHSA-2017-0252.html

http://support.ntp.org/bin/view/Main/NtpBug3071

http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities

http://www.securityfocus.com/bid/94451

http://www.securitytracker.com/id/1037354

https://bto.bluecoat.com/security-advisory/sa139

https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us

https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc

https://usn.ubuntu.com/3707-2/

https://www.kb.cert.org/vuls/id/633847

Details

Source: MITRE

Published: 2017-01-13

Updated: 2020-06-18

Type: CWE-400

Risk Information

CVSS v2.0

Base Score: 4.3

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

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 7.5

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

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH