CVE-2016-2774

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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.

References

http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183458.html

http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183640.html

http://lists.opensuse.org/opensuse-updates/2016-07/msg00066.html

http://rhn.redhat.com/errata/RHSA-2016-2590.html

http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html

http://www.securityfocus.com/bid/84208

http://www.securitytracker.com/id/1035196

https://kb.isc.org/article/AA-01354

https://lists.debian.org/debian-lts-announce/2019/11/msg00023.html

https://usn.ubuntu.com/3586-1/

Details

Source: MITRE

Published: 2016-03-09

Updated: 2020-01-08

Type: CWE-20

Risk Information

CVSS v2

Base Score: 7.1

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

Impact Score: 6.9

Exploitability Score: 8.6

Severity: HIGH

CVSS v3

Base Score: 5.9

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 2.2

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:isc:dhcp:4.1-esv:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r10:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r10_b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r11_b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r11_rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r11_rc2:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r12:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r12_b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r2:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r3:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r3_b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r4:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r5:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r5_b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r5_rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r5_rc2:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r6:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r7:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r8:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r8_b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r8_rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r9:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r9_b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:r9_rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1-esv:rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1.0:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1.0:a1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1.0:a2:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1.0:b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1.1:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1.1:b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1.1:b2:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1.1:b3:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1.1:p1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1.1:rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1.2:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1.2:b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1.2:p1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.1.2:rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.0:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.0:a1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.0:a2:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.0:b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.0:b2:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.0:p1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.0:p2:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.0:rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.1:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.1:b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.1:p1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.1:rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.2:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.2:b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.2:rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.3:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.3:p1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.3:p2:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.4:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.4:b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.4:p1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.4:p2:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.4:rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.4:rc2:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.5:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.5:b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.5:p1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.5:rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.6:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.6:b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.6:rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.7:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.7:b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.7:rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.8:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.8:b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.8:rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.2.8:rc2:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.3.0:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.3.0:a1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.3.0:b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.3.0:rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.3.1:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.3.1:b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.3.1:rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.3.2:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.3.2:b1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.3.2:rc1:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.3.2:rc2:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.3.3:-:*:*:*:*:*:*

cpe:2.3:a:isc:dhcp:4.3.3:b1:*:*:*:*:*:*

Configuration 2

OR

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Configuration 3

OR

cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*

Tenable Plugins

View all (19 total)

IDNameProductFamilySeverity
131248Debian DLA-2003-1 : isc-dhcp security updateNessusDebian Local Security Checks
medium
124946EulerOS Virtualization 3.0.1.0 : dhcp (EulerOS-SA-2019-1443)NessusHuawei Local Security Checks
medium
121654Photon OS 1.0: Dhcp PHSA-2016-0013NessusPhotonOS Local Security Checks
medium
111847Photon OS 1.0: Dhcp / Libtasn1 / Subversion / Unzip PHSA-2016-0013 (deprecated)NessusPhotonOS Local Security Checks
medium
107117Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : isc-dhcp vulnerabilities (USN-3586-1)NessusUbuntu Local Security Checks
high
99827EulerOS 2.0 SP1 : dhcp (EulerOS-SA-2016-1065)NessusHuawei Local Security Checks
medium
95836Scientific Linux Security Update : dhcp on SL7.x x86_64 (20161103)NessusScientific Linux Local Security Checks
medium
95336CentOS 7 : dhcp (CESA-2016:2590)NessusCentOS Local Security Checks
medium
94711Oracle Linux 7 : dhcp (ELSA-2016-2590)NessusOracle Linux Local Security Checks
medium
94553RHEL 7 : dhcp (RHSA-2016:2590)NessusRed Hat Local Security Checks
medium
93286SUSE SLES11 Security Update : dhcp (SUSE-SU-2016:2024-1)NessusSuSE Local Security Checks
medium
93181SUSE SLED12 / SLES12 Security Update : dhcp (SUSE-SU-2016:1791-1)NessusSuSE Local Security Checks
medium
93176SUSE SLES11 Security Update : dhcp (SUSE-SU-2016:1735-1)NessusSuSE Local Security Checks
medium
93167SUSE SLED12 / SLES12 Security Update : dhcp (SUSE-SU-2016:1692-1)NessusSuSE Local Security Checks
medium
92506openSUSE Security Update : dhcp (openSUSE-2016-887)NessusSuSE Local Security Checks
medium
92086Fedora 22 : 12:dhcp (2016-3e64b32a91)NessusFedora Local Security Checks
medium
90962Fedora 24 : dhcp-4.3.4-1.fc24 (2016-821f013cb1)NessusFedora Local Security Checks
medium
90901Fedora 23 : dhcp-4.3.3-9.P1.fc23 (2016-c93d49faf3)NessusFedora Local Security Checks
medium
90250RHEL 6 / 7 : ISC DHCP Concurrent TCP Sessions DoSNessusRed Hat Local Security Checks
high