#VU10799 Denial of service in Network Time Protocol - CVE-2018-7184

Vulnerability identifier: #VU10799

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-7184

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Network Time Protocol
Server applications / Other server solutions

Vendor: ntp.org

Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to insufficient security restrictions. A remote attacker can cause interleaved symmetric mode to crash.

Mitigation
Update to version 4.2.8p11 or later.

Vulnerable software versions

Network Time Protocol: 4.2.8p6 - 4.2.8p10

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External links
https://support.ntp.org/bin/view/Main/SecurityNotice#February_2018_ntp_4_2_8p11_NTP_S
https://support.ntp.org/bin/view/Main/NtpBug3453

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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