CVE-2016-4955
MEDIUM
5.9
CVSS Score
Published: July 5, 2016 at 01:00 AM UTC
Updated: June 17, 2026 at 12:48 AM UTC
11 products affected across 6 vendorsLeapopenSUSESolaris
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Severity
MEDIUM5.9
Exploit prediction
EPSS 9%
Description
ntpd in NTP 4.x before 4.2.8p8, when autokey is enabled, allows remote attackers to cause a denial of service (peer-variable clearing and association outage) by sending (1) a spoofed crypto-NAK packet or (2) a packet with an incorrect MAC value at a certain time.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
4.2.0 ≤ v < 4.2.84.3.0 ≤ v < 4.3.934.2.84.2.8 p14.2.8 p1-beta14.2.8 p1-beta24.2.8 p1-beta34.2.8 p1-beta44.2.8 p1-beta54.2.8 p1-rc14.2.8 p1-rc24.2.8 p24.2.8 p2-rc14.2.8 p2-rc24.2.8 p2-rc34.2.8 p34.2.8 p3-rc14.2.8 p3-rc24.2.8 p3-rc34.2.8 p44.2.8 p54.2.8 p64.2.8 p7
Affected range stops below 4.2.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.3.93, so it looks safe — our inference, not a vendor statement
Leap· openSUSEdrupal
95%All versions
siemens-simatic-net-cp-443-1-opc-ua (same device)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- http://bugs.ntp.org/3043
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html
References (31)
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.htmlVendor Advisoryx_refsource_SUSE
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.htmlVendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.htmlVendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.htmlVendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.htmlVendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.htmlVendor Advisoryx_refsource_SUSE
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- HIGH
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-362
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