Vulnerability Details : CVE-2015-7853
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.
Vulnerability category: OverflowExecute codeDenial of service
Products affected by CVE-2015-7853
- cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:-:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:p2-rc1:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:p1:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:p2:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:p1-beta1:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:p1-beta2:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:p1-beta3:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:p1-beta4:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:p1-beta5:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:p1-rc1:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:p1-rc2:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:p2-rc2:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:p2-rc3:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:p3:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:p3-rc1:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:p3-rc2:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.2.8:p3-rc3:*:*:*:*:*:*
- cpe:2.3:o:netapp:data_ontap:-:*:*:*:*:7-mode:*:*
- cpe:2.3:a:netapp:oncommand_balance:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:oncommand_unified_manager:-:*:*:*:*:clustered_data_ontap:*:*
- cpe:2.3:a:netapp:oncommand_performance_manager:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2015-7853
12.76%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 94 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-7853
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2015-7853
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The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: nvd@nist.gov (Primary)
References for CVE-2015-7853
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http://www.securityfocus.com/archive/1/archive/1/536796/100/100/threaded
Bugtraq
-
http://lists.opensuse.org/opensuse-updates/2015-11/msg00093.html
openSUSE-SU-2015:2016-1: moderate: Security update for ntp - openSUSE Updates - openSUSE Mailing Lists
-
http://www.ubuntu.com/usn/USN-2783-1
USN-2783-1: NTP vulnerabilities | Ubuntu security notices
-
http://packetstormsecurity.com/files/134082/FreeBSD-Security-Advisory-ntp-Authentication-Bypass.html
FreeBSD Security Advisory - ntp Authentication Bypass ≈ Packet Storm
-
https://bugzilla.redhat.com/show_bug.cgi?id=1274262
1274262 – (CVE-2015-7853) CVE-2015-7853 ntp: reference clock memory corruption vulnerabilityIssue Tracking;Third Party Advisory;VDB Entry
-
http://www.securityfocus.com/archive/1/archive/1/536737/100/100/threaded
Bugtraq
-
http://www.securityfocus.com/archive/1/536796/100/0/threaded
Bugtraq
-
https://bto.bluecoat.com/security-advisory/sa103
Broadcom Support Portal
-
https://security.gentoo.org/glsa/201607-15
NTP: Multiple vulnerabilities (GLSA 201607-15) — Gentoo securityThird Party Advisory;VDB Entry
-
http://packetstormsecurity.com/files/134137/Slackware-Security-Advisory-ntp-Updates.html
Slackware Security Advisory - ntp Updates ≈ Packet Storm
-
http://www.securityfocus.com/archive/1/archive/1/536833/100/100/threaded
-
http://www.talosintel.com/vulnerability-reports/
Talos Website
-
http://www.securityfocus.com/archive/1/536760/100/0/threaded
-
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151021-ntp
Multiple Vulnerabilities in ntpd Affecting Cisco Products - October 2015
-
http://www.securityfocus.com/bid/77273
Network Time Protocol CVE-2015-7853 Local Buffer Overflow VulnerabilityThird Party Advisory;VDB Entry
-
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html
[security-announce] SUSE-SU-2016:1311-1: important: Security update for
-
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html
[security-announce] SUSE-SU-2016:1912-1: important: Security update for
-
https://security.netapp.com/advisory/ntap-20171004-0001/
October 2015 Network Time Protocol Daemon (ntpd) Vulnerabilities in Multiple NetApp Products | NetApp Product SecurityThird Party Advisory
-
http://www.securitytracker.com/id/1033951
ntp Multiple Flaws Let Remote Users Deny Service, View Files, and Bypass Authentication to Modify the Time - SecurityTrackerThird Party Advisory;VDB Entry
-
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html
[security-announce] SUSE-SU-2016:2094-1: important: Security update for
-
https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf
-
http://www.securityfocus.com/archive/1/536833/100/0/threaded
-
http://support.ntp.org/bin/view/Main/NtpBug2920
NtpBug2920 < Main < NTPPatch;Vendor Advisory
-
http://www.securityfocus.com/archive/1/archive/1/536760/100/100/threaded
-
http://www.securityfocus.com/archive/1/536737/100/0/threaded
Bugtraq
-
http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html
openSUSE-SU-2016:1423-1: moderate: Security update for ntp
-
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html
[security-announce] SUSE-SU-2016:1247-1: important: Security update for
-
https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11
Siemens SIMATIC NET CP 443-1 OPC UA | CISA
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