Vulnerability Name:

CVE-2019-6469 (CCN-168760)

Assigned:2019-05-29
Published:2019-05-29
Updated:2020-08-24
Summary:An error in the EDNS Client Subnet (ECS) feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a response that has malformed RRSIGs. Versions affected: BIND 9.10.5-S1 -> 9.11.6-S1 of BIND 9 Supported Preview Edition.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network
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
5.9 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
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:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.4 Medium (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
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-2019-6469

Source: XF
Type: UNKNOWN
isc-cve20196469-dos(168760)

Source: CCN
Type: ISC Web site
CVE-2019-6469: BIND Supported Preview Edition can exit with an assertion failure if ECS is in use

Source: CONFIRM
Type: Third Party Advisory
https://kb.isc.org/docs/cve-2019-6469

Source: CONFIRM
Type: UNKNOWN
https://support.f5.com/csp/article/K39751401?utm_source=f5support&utm_medium=RSS

Vulnerable Configuration:Configuration 1:
  • cpe:/a:isc:bind:9.10.5:s1:*:*:supported_preview:*:*:*
  • OR cpe:/a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:*

    • Configuration CCN 1:
  • cpe:/a:isc:bind:9.10.6:*:*:*:*:*:*:*
  • OR cpe:/a:isc:bind:9.10.7:*:*:*:*:*:*:*
  • OR cpe:/a:isc:bind:9.11.3:*:*:*:*:*:*:*
  • OR cpe:/a:isc:bind:9.11.3:s1:*:*:*:*:*:*
  • OR cpe:/a:isc:bind:9.11.3:s2:*:*:*:*:*:*
  • OR cpe:/a:isc:bind:9.10.7:*:*:*:*:*:*:*
  • OR cpe:/a:isc:bind:9.11.3:*:*:*:*:*:*:*
  • OR cpe:/a:isc:bind:9.11.4:*:*:*:*:*:*:*
  • OR cpe:/a:isc:bind:9.10.8:*:*:*:*:*:*:*
  • OR cpe:/a:isc:bind:9.10.8:p1:*:*:*:*:*:*
  • OR cpe:/a:isc:bind:9.10.7:s1:*:*:*:*:*:*
  • OR cpe:/a:isc:bind:9.11.5:s3:*:*:*:*:*:*
  • OR cpe:/a:isc:bind:9.11.0:*:*:*:*:*:*:*
  • OR cpe:/a:isc:bind:9.11.5:s5:*:*:*:*:*:*
  • OR cpe:/a:isc:bind:9.10.5:s1:*:*:*:*:*:*
  • OR cpe:/a:isc:bind:9.11.5:s5:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.cosmic:def:201964690000000
    V
    		CVE-2019-6469 on Ubuntu 18.10 (cosmic) - low.
    2019-06-03
    oval:com.ubuntu.bionic:def:201964690000000
    V
    		CVE-2019-6469 on Ubuntu 18.04 LTS (bionic) - low.
    2019-06-03
    oval:com.ubuntu.xenial:def:201964690000000
    V
    		CVE-2019-6469 on Ubuntu 16.04 LTS (xenial) - low.
    2019-06-03
    BACK
    isc bind 9.10.5 s1
    isc bind 9.11.6 s1
    isc bind 9.10.6
    isc bind 9.10.7
    isc bind 9.11.3
    isc bind 9.11.3 s1
    isc bind 9.11.3 s2
    isc bind 9.10.7
    isc bind 9.11.3
    isc bind 9.11.4
    isc bind 9.10.8
    isc bind 9.10.8 p1
    isc bind 9.10.7 s1
    isc bind 9.11.5 s3
    isc bind 9.11.0
    isc bind 9.11.5 s5
    isc bind 9.10.5 s1
    isc bind 9.11.5 s5