CVE-2016-4957

HIGH
7.5
CVSS Score
Published: July 5, 2016 at 01:00 AM UTC
Updated: June 17, 2026 at 12:48 AM UTC
9 products affected across 5 vendorsLeapopenSUSESolaris

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Severity
HIGH7.5
Exploit prediction
EPSS 45%

Description

ntpd in NTP before 4.2.8p8 allows remote attackers to cause a denial of service (daemon crash) via a crypto-NAK packet. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-1547.

Affected

References (13)

x_refsource_CONFIRMIssue TrackingVendor Advisory
http://bugs.ntp.org/3046
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.html
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.html
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html
x_refsource_CONFIRMPatchVendor Advisory
http://support.ntp.org/bin/view/Main/NtpBug3046
x_refsource_CONFIRMRelease NotesVendor Advisory
http://support.ntp.org/bin/view/Main/SecurityNotice

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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