Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2016-2774

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.

Published

2016-03-09T15:59:00.147

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 5.9 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

8.6

Impact Score

6.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1.0	Yes
Application	isc	dhcp	4.1.0	Yes
Application	isc	dhcp	4.1.0	Yes
Application	isc	dhcp	4.1.0	Yes
Application	isc	dhcp	4.1.1	Yes
Application	isc	dhcp	4.1.1	Yes
Application	isc	dhcp	4.1.1	Yes
Application	isc	dhcp	4.1.1	Yes
Application	isc	dhcp	4.1.1	Yes
Application	isc	dhcp	4.1.1	Yes
Application	isc	dhcp	4.1.2	Yes
Application	isc	dhcp	4.1.2	Yes
Application	isc	dhcp	4.1.2	Yes
Application	isc	dhcp	4.1.2	Yes
Application	isc	dhcp	4.2.0	Yes
Application	isc	dhcp	4.2.0	Yes
Application	isc	dhcp	4.2.0	Yes
Application	isc	dhcp	4.2.0	Yes
Application	isc	dhcp	4.2.0	Yes
Application	isc	dhcp	4.2.0	Yes
Application	isc	dhcp	4.2.0	Yes
Application	isc	dhcp	4.2.0	Yes
Application	isc	dhcp	4.2.1	Yes
Application	isc	dhcp	4.2.1	Yes
Application	isc	dhcp	4.2.1	Yes
Application	isc	dhcp	4.2.1	Yes
Application	isc	dhcp	4.2.2	Yes
Application	isc	dhcp	4.2.2	Yes
Application	isc	dhcp	4.2.2	Yes
Application	isc	dhcp	4.2.3	Yes
Application	isc	dhcp	4.2.3	Yes
Application	isc	dhcp	4.2.3	Yes
Application	isc	dhcp	4.2.4	Yes
Application	isc	dhcp	4.2.4	Yes
Application	isc	dhcp	4.2.4	Yes
Application	isc	dhcp	4.2.4	Yes
Application	isc	dhcp	4.2.4	Yes
Application	isc	dhcp	4.2.4	Yes
Application	isc	dhcp	4.2.5	Yes
Application	isc	dhcp	4.2.5	Yes
Application	isc	dhcp	4.2.5	Yes
Application	isc	dhcp	4.2.5	Yes
Application	isc	dhcp	4.2.6	Yes
Application	isc	dhcp	4.2.6	Yes
Application	isc	dhcp	4.2.6	Yes
Application	isc	dhcp	4.2.7	Yes
Application	isc	dhcp	4.2.7	Yes
Application	isc	dhcp	4.2.7	Yes
Application	isc	dhcp	4.2.8	Yes
Application	isc	dhcp	4.2.8	Yes
Application	isc	dhcp	4.2.8	Yes
Application	isc	dhcp	4.2.8	Yes
Application	isc	dhcp	4.3.0	Yes
Application	isc	dhcp	4.3.0	Yes
Application	isc	dhcp	4.3.0	Yes
Application	isc	dhcp	4.3.0	Yes
Application	isc	dhcp	4.3.1	Yes
Application	isc	dhcp	4.3.1	Yes
Application	isc	dhcp	4.3.1	Yes
Application	isc	dhcp	4.3.2	Yes
Application	isc	dhcp	4.3.2	Yes
Application	isc	dhcp	4.3.2	Yes
Application	isc	dhcp	4.3.2	Yes
Application	isc	dhcp	4.3.3	Yes
Application	isc	dhcp	4.3.3	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	17.10	Yes

References

http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183458.html Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183640.html Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-updates/2016-07/msg00066.html Mailing List, Third Party Advisory ([email protected])
http://rhn.redhat.com/errata/RHSA-2016-2590.html Third Party Advisory ([email protected])
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/84208 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1035196 Third Party Advisory, VDB Entry ([email protected])
https://kb.isc.org/article/AA-01354 Vendor Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2019/11/msg00023.html Third Party Advisory ([email protected])
https://usn.ubuntu.com/3586-1/ Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183458.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183640.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-updates/2016-07/msg00066.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2016-2590.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/84208 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1035196 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://kb.isc.org/article/AA-01354 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2019/11/msg00023.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3586-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)