CVE-2020-8622

CVE Details

Release Date:2020-08-21

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.

See more information about CVE-2020-8622 from MITRE CVE dictionary and NIST NVD


CVSS v3.0 metrics


NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score: 6.5 Base Metrics: AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Access Vector: Network Attack Complexity: Low
Privileges Required: Low User Interaction: None
Scope: Unchanged Confidentiality Impact: None
Integrity Impact: None Availability Impact: High

Errata information


PlatformErrataRelease Date
Oracle Linux version 6 (bind)ELSA-2020-41832020-10-08
Oracle Linux version 7 (bind)ELSA-2020-50112020-11-17
Oracle Linux version 8 (bind)ELSA-2020-45002020-11-10
Oracle VM version 3.3 (bind)OVMSA-2020-00452020-10-08
Oracle VM version 3.4 (bind)OVMSA-2020-00452020-10-08



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