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CVE-2016-2774

Date: March 9, 2016

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.

Severity Score

Related Resources (14)

https://nvd.nist.gov/vuln/detail/CVE-2016-2774
http://rhn.redhat.com/errata/RHSA-2016-2590.html
http://lists.opensuse.org/opensuse-updates/2016-07/msg00066.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183458.html
https://security-tracker.debian.org/tracker/CVE-2016-2774
https://usn.ubuntu.com/3586-1/
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
https://access.redhat.com/security/cve/CVE-2016-2774
https://kb.isc.org/article/AA-01354
http://www.securityfocus.com/bid/84208
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183640.html
http://www.securitytracker.com/id/1035196
https://lists.debian.org/debian-lts-announce/2019/11/msg00023.html
https://www.mend.io/vulnerability-database/CVE-2016-2774

Severity Score

Weakness Type (CWE)

Improper Input Validation

CWE-20

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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