VulnerabilityModified

CVE-2015-5300

HIGH 7.5EPSS 9.13%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (9.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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).

CVSS 3.0: 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 9.13% probability · 95th percentile
CISA KEV: Not listed
Weakness: CWE-361
Affected: fedoraproject/fedora · suse/linux enterprise debuginfo · opensuse/leap · opensuse/opensuse · suse/linux enterprise desktop · suse/linux enterprise server · suse/linux enterprise software development kit · suse/manager · suse/manager proxy · suse/openstack cloud · suse/suse linux enterprise server · redhat/enterprise linux desktop · redhat/enterprise linux hpc node · redhat/enterprise linux hpc node eus · redhat/enterprise linux server · redhat/enterprise linux server eus · redhat/enterprise linux workstation · debian/debian linux · canonical/ubuntu linux · ntp/ntp
Source: secalert@redhat.com

References

http://aix.software.ibm.com/aix/efixes/security/ntp_advisory5.ascThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170684.htmlThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170926.htmlThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177507.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1930.htmlThird Party Advisory
http://seclists.org/bugtraq/2016/Feb/164Mailing List, Third Party Advisory
http://support.ntp.org/bin/view/Main/NtpBug2956Issue Tracking, Patch, Vendor Advisory
http://support.ntp.org/bin/view/Main/SecurityNotice#January_2016_NTP_4_2_8p5_SecuritIssue Tracking, Patch, Vendor Advisory
http://www.debian.org/security/2015/dsa-3388Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.htmlThird Party Advisory
http://www.securityfocus.com/bid/77312Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1034670Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2783-1Third Party Advisory
https://bto.bluecoat.com/security-advisory/sa113Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1271076Issue Tracking
https://ics-cert.us-cert.gov/advisories/ICSA-15-356-01Third Party Advisory, US Government Resource
https://security.netapp.com/advisory/ntap-20171004-0001/
https://support.citrix.com/article/CTX220112Third Party Advisory
https://www-01.ibm.com/support/docview.wss?uid=isg3T1023885Third Party Advisory
https://www-01.ibm.com/support/docview.wss?uid=isg3T1024073Third Party Advisory
https://www-01.ibm.com/support/docview.wss?uid=nas8N1021264Third Party Advisory
https://www-01.ibm.com/support/docview.wss?uid=ssg1S1005821Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.