CVE-2016-9311

Description

ntpd in NTP before 4.2.8p9, when the trap service is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted packet.

Category

5.9
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 18.26% Top 10%
Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory FreeBSD.org Vendor Advisory nwtime.org Vendor Advisory ntp.org Vendor Advisory ntp.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us
http://www.securityfocus.com/bid/94444 vdb entry third party advisory
https://usn.ubuntu.com/3707-2/ vendor advisory
http://rhn.redhat.com/errata/RHSA-2017-0252.html vendor advisory
http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities vendor advisory
http://nwtime.org/ntp428p9_release/ release notes vendor advisory
https://www.kb.cert.org/vuls/id/633847 third party advisory us government resource
http://www.securitytracker.com/id/1037354 vdb entry
https://bto.bluecoat.com/security-advisory/sa139
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03799en_us
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc vendor advisory
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03885en_us
http://support.ntp.org/bin/view/Main/NtpBug3119 issue tracking vendor advisory mitigation

Frequently Asked Questions

What is the severity of CVE-2016-9311?
CVE-2016-9311 has been scored as a medium severity vulnerability.
How to fix CVE-2016-9311?
To fix CVE-2016-9311, 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-2016-9311 being actively exploited in the wild?
It is possible that CVE-2016-9311 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~18% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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