Vulnerability Name:

CVE-2019-6472 (CCN-166133)

Assigned:2019-08-28
Published:2019-08-28
Updated:2019-12-05
Summary:A packet containing a malformed DUID can cause the Kea DHCPv6 server process (kea-dhcp6) to exit due to an assertion failure. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:3.3 Low (CVSS v2 Vector: AV:A/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
6.1 Medium (CCN CVSS v2 Vector: AV:A/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-617
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2019-6472

Source: XF
Type: UNKNOWN
isc-kea-cve20196472-dos(166133)

Source: CCN
Type: ISC Web site
CVE-2019-6472: A packet containing a malformed DUID can cause the kea-dhcp6 server to terminate

Source: CONFIRM
Type: Vendor Advisory
https://kb.isc.org/docs/cve-2019-6472

Source: CCN
Type: oss-sec Mailing List, Wed, 28 Aug 2019 23:46:31 -0800
Three vulnerabilities in Kea DHCP disclosed by ISC, 28 August 2019

Vulnerable Configuration:Configuration 1:
  • cpe:/a:isc:kea:*:*:*:*:*:*:*:* (Version >= 1.4.0 and <= 1.5.0)
  • OR cpe:/a:isc:kea:1.6.0:beta1:*:*:*:*:*:*
  • OR cpe:/a:isc:kea:1.6.0:beta2:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:isc:kea:1.4.0:*:*:*:*:*:*:*
  • OR cpe:/a:isc:kea:1.5.0:*:*:*:*:*:*:*
  • OR cpe:/a:isc:kea:1.6.0:beta1:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:201964720000000
    V
    		CVE-2019-6472 on Ubuntu 19.04 (disco) - medium.
    2019-10-16
    oval:com.ubuntu.bionic:def:201964720000000
    V
    		CVE-2019-6472 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-10-16
    oval:com.ubuntu.xenial:def:201964720000000
    V
    		CVE-2019-6472 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-10-16
    BACK
    isc kea *
    isc kea 1.6.0 beta1
    isc kea 1.6.0 beta2
    isc kea 1.4.0
    isc kea 1.5.0
    isc kea 1.6.0 beta1