CVE-2015-7853
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.5 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.073 Low
EPSS
Percentile
94.0%
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.
References
lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html
lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html
lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html
lists.opensuse.org/opensuse-updates/2015-11/msg00093.html
lists.opensuse.org/opensuse-updates/2016-05/msg00114.html
packetstormsecurity.com/files/134082/FreeBSD-Security-Advisory-ntp-Authentication-Bypass.html
packetstormsecurity.com/files/134137/Slackware-Security-Advisory-ntp-Updates.html
support.ntp.org/bin/view/Main/NtpBug2920
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151021-ntp
www.securityfocus.com/archive/1/536737/100/0/threaded
www.securityfocus.com/archive/1/536760/100/0/threaded
www.securityfocus.com/archive/1/536796/100/0/threaded
www.securityfocus.com/archive/1/536833/100/0/threaded
www.securityfocus.com/archive/1/archive/1/536737/100/100/threaded
www.securityfocus.com/archive/1/archive/1/536760/100/100/threaded
www.securityfocus.com/archive/1/archive/1/536796/100/100/threaded
www.securityfocus.com/archive/1/archive/1/536833/100/100/threaded
www.securityfocus.com/bid/77273
www.securitytracker.com/id/1033951
www.talosintel.com/vulnerability-reports/
www.ubuntu.com/usn/USN-2783-1
bto.bluecoat.com/security-advisory/sa103
bugzilla.redhat.com/show_bug.cgi?id=1274262
cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf
security.gentoo.org/glsa/201607-15
security.netapp.com/advisory/ntap-20171004-0001/
us-cert.cisa.gov/ics/advisories/icsa-21-159-11
Social References
More
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.5 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.073 Low
EPSS
Percentile
94.0%