Vulnerability identifier: #VU39360

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-6459

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
ntp
Server applications / Other server solutions

Vendor: ntp.org

Description

The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.

The Windows installer for NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows local users to have unspecified impact via vectors related to an argument with multiple null bytes.

Mitigation
Install update from vendor's website.

Vulnerable software versions

ntp: 4.2.8 - 4.3.93

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External links
http://support.ntp.org/bin/view/Main/NtpBug3382
http://support.ntp.org/bin/view/Main/SecurityNotice#March_2017_ntp_4_2_8p10_NTP_Secu
http://www.securityfocus.com/bid/97076
http://www.securitytracker.com/id/1038123
http://support.apple.com/HT208144

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.