CVE-2015-7853

critical

Description

The datalen parameter in the refclock driver in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a negative input value.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1274262

http://www.securityfocus.com/bid/77273

http://support.ntp.org/bin/view/Main/NtpBug2920

https://security.gentoo.org/glsa/201607-15

http://www.securitytracker.com/id/1033951

https://security.netapp.com/advisory/ntap-20171004-0001/

https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf

Details

Source: MITRE

Published: 2017-08-07

Updated: 2021-07-16

Type: CWE-120

Risk Information

CVSS v2

Base Score: 7.5

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

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 9.8

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

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL