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Vulnerability Details : 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.
Publish Date : 2016-03-09 Last Update Date : 2020-01-08
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- CVSS Scores & Vulnerability Types

CVSS Score
7.1
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 20

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2016:2590: dhcp security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20162590 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2016-2774

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 14.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 16.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 17.10 * * * Version Details Vulnerabilities
4 OS Debian Debian Linux 8.0 * * * Version Details Vulnerabilities
5 Application ISC Dhcp 4.1-esv - * * Version Details Vulnerabilities
6 Application ISC Dhcp 4.1-esv R3 B1 * * Version Details Vulnerabilities
7 Application ISC Dhcp 4.1-esv R9 * * Version Details Vulnerabilities
8 Application ISC Dhcp 4.1-esv R11 Rc2 * * Version Details Vulnerabilities
9 Application ISC Dhcp 4.1-esv R6 * * Version Details Vulnerabilities
10 Application ISC Dhcp 4.1-esv R1 * * Version Details Vulnerabilities
11 Application ISC Dhcp 4.1-esv R4 * * Version Details Vulnerabilities
12 Application ISC Dhcp 4.1-esv R12 * * Version Details Vulnerabilities
13 Application ISC Dhcp 4.1-esv R9 B1 * * Version Details Vulnerabilities
14 Application ISC Dhcp 4.1-esv R7 * * Version Details Vulnerabilities
15 Application ISC Dhcp 4.1-esv R10 * * Version Details Vulnerabilities
16 Application ISC Dhcp 4.1-esv R5 * * Version Details Vulnerabilities
17 Application ISC Dhcp 4.1-esv R12 B1 * * Version Details Vulnerabilities
18 Application ISC Dhcp 4.1-esv R9 Rc1 * * Version Details Vulnerabilities
19 Application ISC Dhcp 4.1-esv R8 * * Version Details Vulnerabilities
20 Application ISC Dhcp 4.1-esv R10 B1 * * Version Details Vulnerabilities
21 Application ISC Dhcp 4.1-esv R5 B1 * * Version Details Vulnerabilities
22 Application ISC Dhcp 4.1-esv RC1 * * Version Details Vulnerabilities
23 Application ISC Dhcp 4.1-esv R2 * * Version Details Vulnerabilities
24 Application ISC Dhcp 4.1-esv R8 B1 * * Version Details Vulnerabilities
25 Application ISC Dhcp 4.1-esv R11 B1 * * Version Details Vulnerabilities
26 Application ISC Dhcp 4.1-esv R5 Rc1 * * Version Details Vulnerabilities
27 Application ISC Dhcp 4.1-esv R3 * * Version Details Vulnerabilities
28 Application ISC Dhcp 4.1-esv R8 Rc1 * * Version Details Vulnerabilities
29 Application ISC Dhcp 4.1-esv R11 Rc1 * * Version Details Vulnerabilities
30 Application ISC Dhcp 4.1-esv R5 Rc2 * * Version Details Vulnerabilities
31 Application ISC Dhcp 4.1.0 A1 * * Version Details Vulnerabilities
32 Application ISC Dhcp 4.1.0 A2 * * Version Details Vulnerabilities
33 Application ISC Dhcp 4.1.0 B1 * * Version Details Vulnerabilities
34 Application ISC Dhcp 4.1.0 - * * Version Details Vulnerabilities
35 Application ISC Dhcp 4.1.1 B3 * * Version Details Vulnerabilities
36 Application ISC Dhcp 4.1.1 P1 * * Version Details Vulnerabilities
37 Application ISC Dhcp 4.1.1 RC1 * * Version Details Vulnerabilities
38 Application ISC Dhcp 4.1.1 - * * Version Details Vulnerabilities
39 Application ISC Dhcp 4.1.1 B1 * * Version Details Vulnerabilities
40 Application ISC Dhcp 4.1.1 B2 * * Version Details Vulnerabilities
41 Application ISC Dhcp 4.1.2 P1 * * Version Details Vulnerabilities
42 Application ISC Dhcp 4.1.2 RC1 * * Version Details Vulnerabilities
43 Application ISC Dhcp 4.1.2 - * * Version Details Vulnerabilities
44 Application ISC Dhcp 4.1.2 B1 * * Version Details Vulnerabilities
45 Application ISC Dhcp 4.2.0 B2 * * Version Details Vulnerabilities
46 Application ISC Dhcp 4.2.0 P1 * * Version Details Vulnerabilities
47 Application ISC Dhcp 4.2.0 - * * Version Details Vulnerabilities
48 Application ISC Dhcp 4.2.0 P2 * * Version Details Vulnerabilities
49 Application ISC Dhcp 4.2.0 A1 * * Version Details Vulnerabilities
50 Application ISC Dhcp 4.2.0 RC1 * * Version Details Vulnerabilities
51 Application ISC Dhcp 4.2.0 A2 * * Version Details Vulnerabilities
52 Application ISC Dhcp 4.2.0 B1 * * Version Details Vulnerabilities
53 Application ISC Dhcp 4.2.1 B1 * * Version Details Vulnerabilities
54 Application ISC Dhcp 4.2.1 P1 * * Version Details Vulnerabilities
55 Application ISC Dhcp 4.2.1 RC1 * * Version Details Vulnerabilities
56 Application ISC Dhcp 4.2.1 - * * Version Details Vulnerabilities
57 Application ISC Dhcp 4.2.2 RC1 * * Version Details Vulnerabilities
58 Application ISC Dhcp 4.2.2 - * * Version Details Vulnerabilities
59 Application ISC Dhcp 4.2.2 B1 * * Version Details Vulnerabilities
60 Application ISC Dhcp 4.2.3 - * * Version Details Vulnerabilities
61 Application ISC Dhcp 4.2.3 P1 * * Version Details Vulnerabilities
62 Application ISC Dhcp 4.2.3 P2 * * Version Details Vulnerabilities
63 Application ISC Dhcp 4.2.4 RC2 * * Version Details Vulnerabilities
64 Application ISC Dhcp 4.2.4 P1 * * Version Details Vulnerabilities
65 Application ISC Dhcp 4.2.4 P2 * * Version Details Vulnerabilities
66 Application ISC Dhcp 4.2.4 RC1 * * Version Details Vulnerabilities
67 Application ISC Dhcp 4.2.4 - * * Version Details Vulnerabilities
68 Application ISC Dhcp 4.2.4 B1 * * Version Details Vulnerabilities
69 Application ISC Dhcp 4.2.5 - * * Version Details Vulnerabilities
70 Application ISC Dhcp 4.2.5 B1 * * Version Details Vulnerabilities
71 Application ISC Dhcp 4.2.5 P1 * * Version Details Vulnerabilities
72 Application ISC Dhcp 4.2.5 RC1 * * Version Details Vulnerabilities
73 Application ISC Dhcp 4.2.6 - * * Version Details Vulnerabilities
74 Application ISC Dhcp 4.2.6 B1 * * Version Details Vulnerabilities
75 Application ISC Dhcp 4.2.6 RC1 * * Version Details Vulnerabilities
76 Application ISC Dhcp 4.2.7 - * * Version Details Vulnerabilities
77 Application ISC Dhcp 4.2.7 B1 * * Version Details Vulnerabilities
78 Application ISC Dhcp 4.2.7 RC1 * * Version Details Vulnerabilities
79 Application ISC Dhcp 4.2.8 - * * Version Details Vulnerabilities
80 Application ISC Dhcp 4.2.8 B1 * * Version Details Vulnerabilities
81 Application ISC Dhcp 4.2.8 RC1 * * Version Details Vulnerabilities
82 Application ISC Dhcp 4.2.8 RC2 * * Version Details Vulnerabilities
83 Application ISC Dhcp 4.3.0 A1 * * Version Details Vulnerabilities
84 Application ISC Dhcp 4.3.0 B1 * * Version Details Vulnerabilities
85 Application ISC Dhcp 4.3.0 RC1 * * Version Details Vulnerabilities
86 Application ISC Dhcp 4.3.0 - * * Version Details Vulnerabilities
87 Application ISC Dhcp 4.3.1 RC1 * * Version Details Vulnerabilities
88 Application ISC Dhcp 4.3.1 - * * Version Details Vulnerabilities
89 Application ISC Dhcp 4.3.1 B1 * * Version Details Vulnerabilities
90 Application ISC Dhcp 4.3.2 - * * Version Details Vulnerabilities
91 Application ISC Dhcp 4.3.2 B1 * * Version Details Vulnerabilities
92 Application ISC Dhcp 4.3.2 RC1 * * Version Details Vulnerabilities
93 Application ISC Dhcp 4.3.2 RC2 * * Version Details Vulnerabilities
94 Application ISC Dhcp 4.3.3 B1 * * Version Details Vulnerabilities
95 Application ISC Dhcp 4.3.3 - * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 3
Debian Debian Linux 1
ISC Dhcp 91

- References For CVE-2016-2774

https://lists.debian.org/debian-lts-announce/2019/11/msg00023.html
MLIST [debian-lts-announce] 20191124 [SECURITY] [DLA 2003-1] isc-dhcp security update
https://kb.isc.org/article/AA-01354 CONFIRM
http://www.securityfocus.com/bid/84208
BID 84208 ISC DHCP CVE-2016-2774 Remote Denial of Service Vulnerability Release Date:2016-12-19
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183640.html
FEDORA FEDORA-2016-821f013cb1
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html CONFIRM
http://rhn.redhat.com/errata/RHSA-2016-2590.html
REDHAT RHSA-2016:2590
http://www.securitytracker.com/id/1035196
SECTRACK 1035196
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183458.html
FEDORA FEDORA-2016-c93d49faf3
http://lists.opensuse.org/opensuse-updates/2016-07/msg00066.html
SUSE openSUSE-SU-2016:1843
https://usn.ubuntu.com/3586-1/
UBUNTU USN-3586-1

- Metasploit Modules Related To CVE-2016-2774

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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