CVE-2016-2518

Description

The MATCH_ASSOC function in NTP before version 4.2.8p9 and 4.3.x before 4.3.92 allows remote attackers to cause an out-of-bounds reference via an addpeer request with a large hmode value.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.01% Top 25%
Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory cisco.com Vendor Advisory FreeBSD.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory ntp.org Vendor Advisory ntp.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.ubuntu.com/usn/USN-3096-1 vendor advisory
http://www.debian.org/security/2016/dsa-3629 third party advisory vendor advisory
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html third party advisory patch
http://support.ntp.org/bin/view/Main/NtpBug3009 vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html third party advisory
https://access.redhat.com/errata/RHSA-2016:1141 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html vendor advisory
https://www.kb.cert.org/vuls/id/718152 third party advisory us government resource
http://rhn.redhat.com/errata/RHSA-2016-1552.html vendor advisory broken link
http://www.securitytracker.com/id/1035705 vdb entry third party advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html third party advisory
https://security.netapp.com/advisory/ntap-20171004-0002/ third party advisory
http://support.ntp.org/bin/view/Main/SecurityNotice#April_2016_ntp_4_2_8p7_Security vendor advisory
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160428-ntpd vendor advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html vendor advisory
http://www.securityfocus.com/bid/88226 vdb entry third party advisory
http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html vendor advisory
https://security.gentoo.org/glsa/201607-15 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.html vendor advisory
http://packetstormsecurity.com/files/136864/Slackware-Security-Advisory-ntp-Updates.html
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184669.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.html vendor advisory
https://www.debian.org/security/2016/dsa-3629 vendor advisory
http://www.securityfocus.com/archive/1/538233/100/0/threaded mailing list
https://support.f5.com/csp/article/K20804323
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html vendor advisory
http://www.securityfocus.com/archive/1/archive/1/538233/100/0/threaded mailing list
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183647.html vendor advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf third party advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11

Frequently Asked Questions

What is the severity of CVE-2016-2518?
CVE-2016-2518 has been scored as a medium severity vulnerability.
How to fix CVE-2016-2518?
To fix CVE-2016-2518, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-2518 being actively exploited in the wild?
It is possible that CVE-2016-2518 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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