PRIOn knowledge basePRION:CVE-2015-7853Input validation
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
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