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ubuntucveUbuntu.comUB:CVE-2018-7170
HistoryMar 06, 2018 - 12:00 a.m.

CVE-2018-7170

2018-03-0600:00:00
ubuntu.com
ubuntu.com
11

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

3.5 Low

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

0.001 Low

EPSS

Percentile

49.4%

ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows
authenticated users that know the private symmetric key to create
arbitrarily-many ephemeral associations in order to win the clock selection
of ntpd and modify a victim’s clock via a Sybil attack. This issue exists
because of an incomplete fix for CVE-2016-1549.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu21.10noarchntp< 1:4.2.8p11+dfsg-1ubuntu1UNKNOWN
ubuntu22.04noarchntp< 1:4.2.8p11+dfsg-1ubuntu1UNKNOWN
ubuntu16.04noarchntp< anyUNKNOWN
ubuntu18.04noarchntp< anyUNKNOWN
ubuntu18.10noarchntp< 1:4.2.8p11+dfsg-1ubuntu1UNKNOWN
ubuntu19.04noarchntp< 1:4.2.8p11+dfsg-1ubuntu1UNKNOWN
ubuntu19.10noarchntp< 1:4.2.8p11+dfsg-1ubuntu1UNKNOWN
ubuntu20.04noarchntp< 1:4.2.8p11+dfsg-1ubuntu1UNKNOWN
ubuntu20.10noarchntp< 1:4.2.8p11+dfsg-1ubuntu1UNKNOWN
ubuntu21.04noarchntp< 1:4.2.8p11+dfsg-1ubuntu1UNKNOWN
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5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

3.5 Low

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

0.001 Low

EPSS

Percentile

49.4%

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