Medium severity · published Jan 30, 2017
CVE-2016-2516
NTP before 4.2.8p7 and 4.3.x before 4.3.92, when mode7 is enabled, allows remote attackers to cause a denial of service (ntpd abort) by using the same IP address multiple times in…
5.3
CVSS
8.9%
EPSS
No
On KEV
Description
NTP before 4.2.8p7 and 4.3.x before 4.3.92, when mode7 is enabled, allows remote attackers to cause a denial of service (ntpd abort) by using the same IP address multiple times in an unconfig directive.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)8.9% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NT
Ntp · Ntp
through 4.2.8; 4.3.0; 4.3.1; 4.3.2; 4.3.3; 4.3.4; +34 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-2516
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-2516
Vendor Advisory
http://support.ntp.org/bin/view/Main/NtpBug3011
www.debian.org
http://www.debian.org/security/2016/dsa-3629
Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
Third Party Advisory
http://www.securityfocus.com/bid/88180
www.securitytracker.com
http://www.securitytracker.com/id/1035705
security.freebsd.org
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc
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