CVE-2016-2517 - Vulncode-DB

CVE-2016-2517 (NVD)

2017-01-30

NTP before 4.2.8p7 and 4.3.x before 4.3.92 allows remote attackers to cause a denial of service (prevent subsequent authentication) by leveraging knowledge of the controlkey or requestkey and sending a crafted packet to ntpd, which changes the value of trustedkey, controlkey, or requestkey. NOTE: this vulnerability exists because of a CVE-2016-2516 regression.

Products	Ntp
Type	Improper Input Validation (CWE-20)
First patch	- None (likely due to unavailable code)
Links	• http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html • http://www.securityfocus.com/bid/88189 • https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc • https://security.gentoo.org/glsa/201607-15 • https://www.kb.cert.org/vuls/id/718152 More/Less (3) • http://www.securitytracker.com/id/1035705 • http://support.ntp.org/bin/view/Main/NtpBug3010 • https://security.netapp.com/advisory/ntap-20171004-0002/