CVE-2016-2774

CVSS V2 High 7.1 CVSS V3 Medium 5.9
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.
Overview
  • CVE ID
  • CVE-2016-2774
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2016-03-09T15:59:00
  • Last Modified Date
  • 2020-01-08T17:17:06
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:isc:dhcp:4.1-esv:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r10:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r10_b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r11_b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r11_rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r11_rc2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r12:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r12_b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r3:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r3_b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r4:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r5:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r5_b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r5_rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r5_rc2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r6:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r7:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r8:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r8_b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r8_rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r9:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r9_b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r9_rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1.0:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1.0:a1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1.0:a2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1.0:b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1.1:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1.1:b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1.1:b2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1.1:b3:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1.1:p1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1.1:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1.2:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1.2:b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1.2:p1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1.2:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.0:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.0:a1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.0:a2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.0:b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.0:b2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.0:p1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.0:p2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.0:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.1:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.1:b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.1:p1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.1:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.2:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.2:b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.2:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.3:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.3:p1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.3:p2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.4:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.4:b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.4:p1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.4:p2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.4:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.4:rc2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.5:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.5:b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.5:p1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.5:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.6:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.6:b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.6:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.7:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.7:b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.7:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.8:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.8:b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.8:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.2.8:rc2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.3.0:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.3.0:a1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.3.0:b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.3.0:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.3.1:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.3.1:b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.3.1:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.3.2:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.3.2:b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.3.2:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.3.2:rc2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.3.3:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.3.3:b1:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:N/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.1
  • Severity
  • HIGH
  • Exploitability Score
  • 8.6
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.9
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.2
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://kb.isc.org/article/AA-01354 Vendor Advisory
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-07/msg00066.html Mailing List Third Party Advisory
http://www.securityfocus.com/bid/84208 Third Party Advisory VDB Entry
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183640.html Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183458.html Third Party Advisory
http://www.securitytracker.com/id/1035196 Third Party Advisory VDB Entry
http://rhn.redhat.com/errata/RHSA-2016-2590.html Third Party Advisory
https://usn.ubuntu.com/3586-1/ Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/11/msg00023.html Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2016-2774
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2774
History
Created Old Value New Value Data Type Notes
2022-05-10 16:54:20 Added to TrackCVE
2022-12-02 08:35:21 2016-03-09T15:59Z 2016-03-09T15:59:00 CVE Published Date updated
2022-12-02 08:35:21 2020-01-08T17:17:06 CVE Modified Date updated
2022-12-02 08:35:21 Analyzed Vulnerability Status updated