NVD - CVE-2015-7853

CVE-2015-7853 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Current Description

The datalen parameter in the refclock driver in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a negative input value.

Source: MITRE
Description Last Modified: 08/07/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 9.8 CRITICAL
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 3.9

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0

Access Vector (AV): Network
Access Complexity (AC): Insufficient_Info
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://support.ntp.org/bin/view/Main/NtpBug2920	Patch Vendor Advisory
http://www.securityfocus.com/bid/77273	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1033951
https://bugzilla.redhat.com/show_bug.cgi?id=1274262	Issue Tracking Third Party Advisory VDB Entry
https://security.gentoo.org/glsa/201607-15	Third Party Advisory VDB Entry
https://security.netapp.com/advisory/ntap-20171004-0001/

Technical Details

Vulnerability Type (View All)

Buffer Errors (CWE-119)

Vulnerable software and versions Switch to CPE 2.2

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Change History

4 change records found - show changes

Initial Analysis - 8/15/2017 9:54:12 AM

Action	Type	Old Value	New Value
Added	CPE Configuration		Record truncated, showing 500 of 36029 characters. View Entire Change Record OR cpe:2.3:a:ntp:ntp:4.2.0::::::: cpe:2.3:a:ntp:ntp:4.2.2::::::: cpe:2.3:a:ntp:ntp:4.2.2:p1::::::* cpe:2.3:a:ntp:ntp:4.2.2:p2::::::* cpe:2.3:a:ntp:ntp:4.2.2:p3::::::* cpe:2.3:a:ntp:ntp:4.2.2:p4::::::* cpe:2.3:a:ntp:ntp:4.2.4::::::: cpe:2.3:a:ntp:ntp:4.2.4:p0::::::* cpe:2.3:a:ntp:ntp:4.2.4:p1::::::* cpe:2.3:a:ntp:ntp:4.2.4:p2::::::* cpe:2.3:a:ntp:ntp:4.2.4:p3::::::*
Added	CVSS V2		(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Added	CVSS V3		AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added	CWE		CWE-119
Changed	Reference Type	http://support.ntp.org/bin/view/Main/NtpBug2920 No Types Assigned	http://support.ntp.org/bin/view/Main/NtpBug2920 Patch, Vendor Advisory
Changed	Reference Type	http://www.securityfocus.com/bid/77273 No Types Assigned	http://www.securityfocus.com/bid/77273 Third Party Advisory, VDB Entry
Changed	Reference Type	https://bugzilla.redhat.com/show_bug.cgi?id=1274262 No Types Assigned	https://bugzilla.redhat.com/show_bug.cgi?id=1274262 Issue Tracking, Third Party Advisory, VDB Entry
Changed	Reference Type	https://security.gentoo.org/glsa/201607-15 No Types Assigned	https://security.gentoo.org/glsa/201607-15 Third Party Advisory, VDB Entry

Quick Info

CVE Dictionary Entry:
CVE-2015-7853
NVD Published Date:
08/07/2017
NVD Last Modified:
11/09/2017

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2015-7853 Detail

Current Description

Analysis Description

Impact

References to Advisories, Solutions, and Tools

Technical Details

Vulnerable software and versions Switch to CPE 2.2

Change History

CVE Modified by MITRE - 11/9/2017 9:29:05 PM

CVE Modified by MITRE - 9/14/2017 9:29:02 PM

Initial Analysis - 8/15/2017 9:54:12 AM

CVE Modified by MITRE - 8/8/2017 9:29:03 PM

Quick Info