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HTTP Request Smuggling The advisory has been revoked - it doesn't affect any version of package bind-dnssec-utils  (opens in a new tab)

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EPSS
3.36% (88th percentile)

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  • Snyk IDSNYK-RHEL9-BINDDNSSECUTILS-11450401
  • published5 Aug 2025
  • disclosed16 Mar 2022
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Introduced: 16 Mar 2022

CVE-2021-25220  (opens in a new tab)
CWE-444  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind-dnssec-utils package and not the bind-dnssec-utils package as distributed by RHEL.

BIND 9.11.0 -> 9.11.36 9.12.0 -> 9.16.26 9.17.0 -> 9.18.0 BIND Supported Preview Editions: 9.11.4-S1 -> 9.11.36-S1 9.16.8-S1 -> 9.16.26-S1 Versions of BIND 9 earlier than those shown - back to 9.1.0, including Supported Preview Editions - are also believed to be affected but have not been tested as they are EOL. The cache could become poisoned with incorrect records leading to queries being made to the wrong servers, which might also result in false information being returned to clients.

References