Vulnerability Report

CVE-2016-7434

Title: Hpe Hpux-Ntp Denial of Service (DoS)

DoS

Proof Of Concept

PoC Available for CVE-2016-7434

CWE Category CWE-20

Published Date Jan 13, 2017

Modified Date May 13, 2026

Exploit Status Available

Score 7.5 CVSS v3.1

Exploit Probability (EPSS)

62.38%

Vulnerability Summary

CVE-2016-7434: The read_mru_list function in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (crash) via a crafted mrulist query.

Impacted Vendors

ntp 1

hpe 1

Reference Links

http://nwtime.org/ntp428p9_release/ http://support.ntp.org/bin/view/Main/NtpBug3082 http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities http://www.securityfocus.com/bid/94448 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://www.exploit-db.com/exploits/40806/ https://www.kb.cert.org/vuls/id/633847 http://nwtime.org/ntp428p9_release/ http://support.ntp.org/bin/view/Main/NtpBug3082 http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities http://www.securityfocus.com/bid/94448 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://www.exploit-db.com/exploits/40806/ https://www.kb.cert.org/vuls/id/633847

CVSS v3.1

Source Entity [email protected]

Severity HIGH

7.5

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

4.3

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:M/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns