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Fixed

LIN1021-1854 : Security Advisory - bind - CVE-2021-25219

Created: Oct 27, 2021 Updated: Dec 12, 2021

Resolved Date: Nov 23, 2021

Found In Version: 10.21.20.1

Fix Version: 10.21.20.7

Severity: Standard

Applicable for: Wind River Linux LTS 21

Component/s: Userspace

Description

In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND 9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it possible for its internal data structures to grow almost infinitely, which may cause significant delays in client query processing.

CREATE(Triage):(User=admin) CVE-2021-25219 (https://nvd.nist.gov/vuln/detail/CVE-2021-25219)

CVEs

CVE-2021-25219