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Ubuntu: USN-3586-1 (CVE-2016-2774): DHCP vulnerabilities

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Ubuntu: USN-3586-1 (CVE-2016-2774): DHCP vulnerabilities

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:C)
Published
03/09/2016
Created
07/25/2018
Added
03/02/2018
Modified
09/12/2020

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.

Solution(s)

  • ubuntu-upgrade-isc-dhcp-client
  • ubuntu-upgrade-isc-dhcp-relay
  • ubuntu-upgrade-isc-dhcp-server
  • ubuntu-upgrade-isc-dhcp-server-ldap

References

  • USN-3586-1
  • USN-3586-2
  • CVE-2016-2774

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