CVE-2015-5219

high-risk
Published 2017-07-21

The ULOGTOD function in ntp.d in SNTP before 4.2.7p366 does not properly perform type conversions from a precision value to a double, which allows remote attackers to cause a denial of service (infinite loop) via a crafted NTP packet.

Do I need to act?

~
2.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (20)

Ntp
Tim 4R-Id Dnp3 Firmware

Affected Vendors

Suse Siemens Ntp Oracle Debian Canonical Redhat Opensuse Fedoraproject Novell

References (48)

Third Party Advisory http://aix.software.ibm.com/aix/efixes/security/ntp_advisory4.asc
Issue Tracking http://bk1.ntp.org/ntp-dev/?PAGE=patch&REV=51786731Gr4-NOrTBC_a_uXO4wuGhg
Mailing List http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170926.h...
Mailing List http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169167.ht...
Mailing List http://lists.fedoraproject.org/pipermail/package-announce/2015-September/166992....
Broken Link http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html
Broken Link http://lists.opensuse.org/opensuse-updates/2016-12/msg00153.html
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-0780.html
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-2583.html
Third Party Advisory http://www.debian.org/security/2015/dsa-3388
Mailing List http://www.openwall.com/lists/oss-security/2015/08/25/3
Third Party Advisory http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.h...
Third Party Advisory http://www.securityfocus.com/bid/76473
Third Party Advisory http://www.ubuntu.com/usn/USN-2783-1
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1255118
Third Party Advisory https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf
Issue Tracking https://github.com/ntp-project/ntp/commit/5f295cd05c3c136d39f5b3e500a2d781bdbb59...
Third Party Advisory https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11
Third Party Advisory https://www-01.ibm.com/support/docview.wss?uid=isg3T1024157
Third Party Advisory https://www-01.ibm.com/support/docview.wss?uid=swg21985122
and 28 more references
54
/ 100
high-risk
Severity 26/34 · High
Exploitability 5/34 · Minimal
Exposure 23/34 · High