Vulnerability Monitor

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CVE-2015-7855

The decodenetnum function in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (assertion failure) via a 6 or mode 7 packet containing a long data value.

Published

2017-08-07T20:29:00.950

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

8.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	ntp	ntp	< 4.2.8	Yes
Application	ntp	ntp	< 4.3.77	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Operating System	debian	debian_linux	7.0	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	debian	debian_linux	9.0	Yes
Application	netapp	oncommand_balance	-	Yes
Application	netapp	oncommand_performance_manager	-	Yes
Application	netapp	oncommand_unified_manager	-	Yes
Operating System	netapp	clustered_data_ontap	-	Yes
Operating System	netapp	data_ontap	-	Yes
Operating System	siemens	tim_4r-ie_firmware	*	Yes
Hardware	siemens	tim_4r-ie	-	No
Operating System	siemens	tim_4r-ie_dnp3_firmware	*	Yes
Hardware	siemens	tim_4r-ie_dnp3	-	No

References

http://support.ntp.org/bin/view/Main/NtpBug2922 Patch, Vendor Advisory ([email protected])
http://www.debian.org/security/2015/dsa-3388 Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/77283 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1033951 Third Party Advisory, VDB Entry ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1274264 Issue Tracking, Third Party Advisory, VDB Entry ([email protected])
https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf Third Party Advisory ([email protected])
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05270839 Third Party Advisory, VDB Entry ([email protected])
https://security.gentoo.org/glsa/201607-15 Third Party Advisory, VDB Entry ([email protected])
https://security.netapp.com/advisory/ntap-20171004-0001/ Third Party Advisory ([email protected])
https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11 Third Party Advisory, US Government Resource ([email protected])
https://www.exploit-db.com/exploits/40840/ Exploit, Third Party Advisory, VDB Entry ([email protected])
http://support.ntp.org/bin/view/Main/NtpBug2922 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2015/dsa-3388 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/77283 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1033951 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1274264 Issue Tracking, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05270839 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201607-15 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20171004-0001/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
https://www.exploit-db.com/exploits/40840/ Exploit, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)