CVE-2016-2517

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.3 MEDIUM
NETWORK
HIGH
LOW
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 88%
VendorProductVersion
ntpntp
𝑥
≤ 4.2.8
ntpntp
4.3.0
ntpntp
4.3.1
ntpntp
4.3.2
ntpntp
4.3.3
ntpntp
4.3.4
ntpntp
4.3.5
ntpntp
4.3.6
ntpntp
4.3.7
ntpntp
4.3.8
ntpntp
4.3.9
ntpntp
4.3.10
ntpntp
4.3.11
ntpntp
4.3.12
ntpntp
4.3.13
ntpntp
4.3.14
ntpntp
4.3.15
ntpntp
4.3.16
ntpntp
4.3.17
ntpntp
4.3.18
ntpntp
4.3.19
ntpntp
4.3.20
ntpntp
4.3.21
ntpntp
4.3.22
ntpntp
4.3.23
ntpntp
4.3.24
ntpntp
4.3.25
ntpntp
4.3.26
ntpntp
4.3.27
ntpntp
4.3.28
ntpntp
4.3.29
ntpntp
4.3.30
ntpntp
4.3.31
ntpntp
4.3.32
ntpntp
4.3.33
ntpntp
4.3.34
ntpntp
4.3.35
ntpntp
4.3.36
ntpntp
4.3.37
ntpntp
4.3.38
ntpntp
4.3.39
ntpntp
4.3.40
ntpntp
4.3.41
ntpntp
4.3.42
ntpntp
4.3.43
ntpntp
4.3.44
ntpntp
4.3.45
ntpntp
4.3.46
ntpntp
4.3.47
ntpntp
4.3.48
ntpntp
4.3.49
ntpntp
4.3.50
ntpntp
4.3.51
ntpntp
4.3.52
ntpntp
4.3.53
ntpntp
4.3.54
ntpntp
4.3.55
ntpntp
4.3.56
ntpntp
4.3.57
ntpntp
4.3.58
ntpntp
4.3.59
ntpntp
4.3.60
ntpntp
4.3.61
ntpntp
4.3.62
ntpntp
4.3.63
ntpntp
4.3.64
ntpntp
4.3.65
ntpntp
4.3.66
ntpntp
4.3.67
ntpntp
4.3.68
ntpntp
4.3.69
ntpntp
4.3.70
ntpntp
4.3.71
ntpntp
4.3.72
ntpntp
4.3.73
ntpntp
4.3.74
ntpntp
4.3.75
ntpntp
4.3.76
ntpntp
4.3.77
ntpntp
4.3.78
ntpntp
4.3.79
ntpntp
4.3.80
ntpntp
4.3.81
ntpntp
4.3.82
ntpntp
4.3.83
ntpntp
4.3.84
ntpntp
4.3.85
ntpntp
4.3.86
ntpntp
4.3.87
ntpntp
4.3.88
ntpntp
4.3.89
ntpntp
4.3.90
ntpntp
4.3.91
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
ntp
bullseye
1:4.2.8p15+dfsg-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
ntp
xenial
ignored
wily
ignored
trusty
ignored
precise
ignored