CVE-2016-2774

Description

ISC DHCP 4.1.x before 4.1-ESV-R13 and 4.2.x and 4.3.x before 4.3.4 does not restrict the number of concurrent TCP sessions, which allows remote attackers to cause a denial of service (INSIST assertion failure or request-processing outage) by establishing many sessions.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 46.01% Top 5%
Vendor Advisory redhat.com Vendor Advisory fedoraproject.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory isc.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://rhn.redhat.com/errata/RHSA-2016-2590.html third party advisory vendor advisory
http://www.securitytracker.com/id/1035196 third party advisory vdb entry
https://kb.isc.org/article/AA-01354 vendor advisory
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html third party advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183640.html third party advisory vendor advisory
https://usn.ubuntu.com/3586-1/ third party advisory vendor advisory
http://lists.opensuse.org/opensuse-updates/2016-07/msg00066.html vendor advisory mailing list third party advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183458.html third party advisory vendor advisory
http://www.securityfocus.com/bid/84208 third party advisory vdb entry
https://lists.debian.org/debian-lts-announce/2019/11/msg00023.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2016-2774?
CVE-2016-2774 has been scored as a medium severity vulnerability.
How to fix CVE-2016-2774?
To fix CVE-2016-2774, 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-2016-2774 being actively exploited in the wild?
It is possible that CVE-2016-2774 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~46% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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