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CVE-2020-8622

CVE information

Published

3 years ago

Last Modified

4 months ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

Medium

Impact Analysis

Description

In BIND 9.0.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit. Alternately, an off-path attacker would have to correctly guess when a TSIG-signed request was sent, along with other characteristics of the packet and message, and spoof a truncated response to trigger an assertion failure, causing the server to exit..

CVSSv2.0 Score

Severity
Medium
Base Score
4/10
Exploit Score
8/10
Access Vector
Network
Access Complexity
Low
Authentication Required
Single
Impact Score
2.9/10
Confidentiality Impact
None
Availability Impact
Partial
Integrity Impact
None

CVSSv3.1 Score

Severity
Medium
Base Score
6.5/10
Exploit Score
2.8/10
Access Vector
Network
Access Complexity
Low
Privileges Required
Low
Impact Score
3.6/10
Confidentiality Impact
None
Availability Impact
High
Integrity Impact
None
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
  Yes
9.17.0 -
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
  Yes
9.0.0 -
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
  Yes
9.12.0 -
cpe:2.3:a:isc:bind:9.9.3:s1:*:*:supported_preview:*:*:*
  Yes
- -
cpe:2.3:a:isc:bind:9.11.21:s1:*:*:supported_preview:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  Yes
- -
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
  Yes
- -
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
  Yes
- -
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
  Yes
- -
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
  Yes
- -
cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*
  Yes
- -
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:synology:dns_server:*:*:*:*:*:*:*:*
  Yes
- 2.2.2-5028
cpe:2.3:a:oracle:communications_diameter_signaling_router:*:
  Yes
8.0.0 -