Vulnerability CVE-2015-5300
Published: 2017-07-21

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).

Type:

CWE-361

 (Time and State)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
SUSE -> Linux enterprise debuginfo 
SUSE -> Suse linux enterprise server 
SUSE -> Manager 
SUSE -> Openstack cloud 
SUSE -> Linux enterprise desktop 
SUSE -> Linux enterprise server 
SUSE -> Manager proxy 
SUSE -> Linux enterprise software development kit 
Redhat -> Enterprise linux hpc node eus 
Redhat -> Enterprise linux server 
Redhat -> Enterprise linux server eus 
Redhat -> Enterprise linux desktop 
Redhat -> Enterprise linux hpc node 
Redhat -> Enterprise linux workstation 
Opensuse project -> Opensuse 
Opensuse -> LEAP 
Opensuse -> Opensuse 
NTP -> NTP 
Novell -> LEAP 
Fedoraproject -> Fedora 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 References:
http://aix.software.ibm.com/aix/efixes/security/ntp_advisory5.asc
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170684.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170926.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177507.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html
http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html
http://rhn.redhat.com/errata/RHSA-2015-1930.html
http://seclists.org/bugtraq/2016/Feb/164
http://support.ntp.org/bin/view/Main/NtpBug2956
http://support.ntp.org/bin/view/Main/SecurityNotice#January_2016_NTP_4_2_8p5_Securit
http://www.debian.org/security/2015/dsa-3388
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
http://www.securityfocus.com/bid/77312
http://www.securitytracker.com/id/1034670
http://www.ubuntu.com/usn/USN-2783-1
https://bto.bluecoat.com/security-advisory/sa113
https://bugzilla.redhat.com/show_bug.cgi?id=1271076
https://ics-cert.us-cert.gov/advisories/ICSA-15-356-01
https://security.netapp.com/advisory/ntap-20171004-0001/
https://support.citrix.com/article/CTX220112
https://www-01.ibm.com/support/docview.wss?uid=isg3T1023885
https://www-01.ibm.com/support/docview.wss?uid=isg3T1024073
https://www-01.ibm.com/support/docview.wss?uid=nas8N1021264
https://www-01.ibm.com/support/docview.wss?uid=ssg1S1005821
https://www-01.ibm.com/support/docview.wss?uid=swg21979393
https://www-01.ibm.com/support/docview.wss?uid=swg21980676
https://www-01.ibm.com/support/docview.wss?uid=swg21983501
https://www-01.ibm.com/support/docview.wss?uid=swg21983506
https://www.cs.bu.edu/~goldbe/NTPattack.html
https://www.freebsd.org/security/advisories/FreeBSD-SA-16:02.ntp.asc
https://www.ibm.com/support/home/docdisplay?lndocid=migr-5099428
https://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
https://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
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