CVE-2016-4957

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

ntpd en NTP en versiones anteriores a 4.2.8p8 permite a atacantes remotos provocar una denegación de servicio (caída del demonio) a través de un paquete crypto-NAK. NOTA: esta vulnerabilidad existe debido a una solución incorrecta para CVE-2016-1547.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-05-23 CVE Reserved
2016-06-06 CVE Published
2024-08-06 CVE Updated
2024-09-02 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (13)

URL	Tag	Source
http://www.kb.cert.org/vuls/id/321640	Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html	Third Party Advisory
http://www.securitytracker.com/id/1036037	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://support.ntp.org/bin/view/Main/NtpBug3046	2020-06-18

URL	Date	SRC
http://bugs.ntp.org/3046	2020-06-18
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.html	2020-06-18
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html	2020-06-18
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html	2020-06-18
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.html	2020-06-18
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html	2020-06-18
http://support.ntp.org/bin/view/Main/SecurityNotice	2020-06-18
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:24.ntp.asc	2020-06-18
https://security.gentoo.org/glsa/201607-15	2020-06-18

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ntp Search vendor "Ntp"		Ntp Search vendor "Ntp" for product "Ntp"				4.2.8 Search vendor "Ntp" for product "Ntp" and version "4.2.8"		p7		Affected
Ntp Search vendor "Ntp"		Ntp Search vendor "Ntp" for product "Ntp"				4.3.92 Search vendor "Ntp" for product "Ntp" and version "4.3.92"		-		Affected
Oracle Search vendor "Oracle"		Solaris Search vendor "Oracle" for product "Solaris"				10 Search vendor "Oracle" for product "Solaris" and version "10"		-		Affected
Oracle Search vendor "Oracle"		Solaris Search vendor "Oracle" for product "Solaris"				11.3 Search vendor "Oracle" for product "Solaris" and version "11.3"		-		Affected
Suse Search vendor "Suse"		Manager Proxy Search vendor "Suse" for product "Manager Proxy"				2.1 Search vendor "Suse" for product "Manager Proxy" and version "2.1"		-		Affected
Suse Search vendor "Suse"		Openstack Cloud Search vendor "Suse" for product "Openstack Cloud"				5 Search vendor "Suse" for product "Openstack Cloud" and version "5"		-		Affected
Novell Search vendor "Novell"		Suse Manager Search vendor "Novell" for product "Suse Manager"				2.1 Search vendor "Novell" for product "Suse Manager" and version "2.1"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				42.1 Search vendor "Opensuse" for product "Leap" and version "42.1"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				13.2 Search vendor "Opensuse" for product "Opensuse" and version "13.2"		-		Affected
Suse Search vendor "Suse"		Linux Enterprise Desktop Search vendor "Suse" for product "Linux Enterprise Desktop"				12 Search vendor "Suse" for product "Linux Enterprise Desktop" and version "12"		sp1		Affected
Suse Search vendor "Suse"		Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"				11 Search vendor "Suse" for product "Linux Enterprise Server" and version "11"		sp2, ltss		Affected
Suse Search vendor "Suse"		Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"				11 Search vendor "Suse" for product "Linux Enterprise Server" and version "11"		sp3, ltss		Affected
Suse Search vendor "Suse"		Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"				11 Search vendor "Suse" for product "Linux Enterprise Server" and version "11"		sp4		Affected
Suse Search vendor "Suse"		Linux Enterprise Server Search vendor "Suse" for product "Linux Enterprise Server"				12 Search vendor "Suse" for product "Linux Enterprise Server" and version "12"		sp1		Affected