CVE-2018-7185

MEDIUM

Description

The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service (disruption) by continually sending a packet with a zero-origin timestamp and source IP address of the "other side" of an interleaved association causing the victim ntpd to reset its association.

References

http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html

http://support.ntp.org/bin/view/Main/NtpBug3454

http://www.securityfocus.com/archive/1/541824/100/0/threaded

http://www.securityfocus.com/bid/103339

https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc

https://security.gentoo.org/glsa/201805-12

https://security.netapp.com/advisory/ntap-20180626-0001/

https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us

https://usn.ubuntu.com/3707-1/

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

https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

https://www.synology.com/support/security/Synology_SA_18_13

Details

Source: MITRE

Published: 2018-03-06

Updated: 2020-06-18

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 5

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

Impact Score: 2.9

Exploitability Score: 10

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