Reachable Assertion Affecting bind package, versions <9.16.6-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.4% (74th percentile)

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  • Snyk IDSNYK-ALPINE319-BIND-6105665
  • published8 Dec 2023
  • disclosed21 Aug 2020

Introduced: 21 Aug 2020

CVE-2020-8622  (opens in a new tab)
CWE-617  (opens in a new tab)

How to fix?

Upgrade Alpine:3.19 bind to version 9.16.6-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind package and not the bind package as distributed by Alpine. See How to fix? for Alpine:3.19 relevant fixed versions and status.

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.

CVSS Scores

version 3.1