Detections
Analytics
CVE-2015-5300
high
Description
The panic_gate check in NTP before 4.2.8p5 is only re-enabled after the first change to the system clock that was greater than 128 milliseconds by default, which allows remote attackers to set NTP to an arbitrary time when started with the -g option, or to alter the time by up to 900 seconds otherwise by responding to an unspecified number of requests from trusted sources, and leveraging a resulting denial of service (abort and restart).
References
https://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
https://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
https://www.ibm.com/support/home/docdisplay?lndocid=migr-5099428
https://www.freebsd.org/security/advisories/FreeBSD-SA-16:02.ntp.asc
https://www.cs.bu.edu/~goldbe/NTPattack.html
https://www-01.ibm.com/support/docview.wss?uid=swg21983506
https://www-01.ibm.com/support/docview.wss?uid=swg21983501
https://www-01.ibm.com/support/docview.wss?uid=swg21980676
https://www-01.ibm.com/support/docview.wss?uid=swg21979393
https://www-01.ibm.com/support/docview.wss?uid=ssg1S1005821
https://www-01.ibm.com/support/docview.wss?uid=nas8N1021264
https://www-01.ibm.com/support/docview.wss?uid=isg3T1024073
https://www-01.ibm.com/support/docview.wss?uid=isg3T1023885
https://support.citrix.com/article/CTX220112
https://ics-cert.us-cert.gov/advisories/ICSA-15-356-01
https://bto.bluecoat.com/security-advisory/sa113
http://www.ubuntu.com/usn/USN-2783-1
http://www.securitytracker.com/id/1034670
http://www.securityfocus.com/bid/77312
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
http://www.debian.org/security/2015/dsa-3388
http://seclists.org/bugtraq/2016/Feb/164
http://rhn.redhat.com/errata/RHSA-2015-1930.html
http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177507.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170926.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170684.html
http://aix.software.ibm.com/aix/efixes/security/ntp_advisory5.asc