Improper input validation in Isc Dhcp
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)…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.656 (98.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Isc Dhcp — versions 4.1-esv, 4.1.0, 4.1.1
- Canonical Ubuntu_linux — versions 14.04, 16.04, 17.10
- Debian Debian_linux — versions 8.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- RHSA-2016:2590 (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- 1035196 (Third Party Advisory, VDB Entry, vdb-entry, x_refsource_SECTRACK)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
- FEDORA-2016-821f013cb1 (x_refsource_FEDORA, vendor-advisory, Third Party Advisory)
- USN-3586-1 (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- openSUSE-SU-2016:1843 (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- FEDORA-2016-c93d49faf3 (x_refsource_FEDORA, vendor-advisory, Third Party Advisory)
- 84208 (Third Party Advisory, VDB Entry, vdb-entry, x_refsource_BID)
- [debian-lts-announce] 20191124 [SECURITY] [DLA 2003-1] isc-dhcp security update (mailing-list, x_refsource_MLIST, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-2774?
- CVE-2016-2774 is a medium-severity vulnerability in Isc Dhcp, classified under Improper Input Validation. CVSS score: 5.9/10. Published 2016-03-09.
- How severe is CVE-2016-2774?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2016-2774 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.