CVE-2017-6451

MEDIUM

Description

The mx4200_send function in the legacy MX4200 refclock in NTP before 4.2.8p10 and 4.3.x before 4.3.94 does not properly handle the return value of the snprintf function, which allows local users to execute arbitrary code via unspecified vectors, which trigger an out-of-bounds memory write.

References

http://support.ntp.org/bin/view/Main/NtpBug3378

http://support.ntp.org/bin/view/Main/SecurityNotice#March_2017_ntp_4_2_8p10_NTP_Secu

http://www.securityfocus.com/bid/97058

http://www.securitytracker.com/id/1038123

http://www.securitytracker.com/id/1039427

https://support.apple.com/HT208144

Details

Source: MITRE

Published: 2017-03-27

Updated: 2017-10-24

Type: CWE-787

Risk Information

CVSS v2.0

Base Score: 4.6

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

Impact Score: 6.4

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3.0

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH