HTTP Request Smuggling Affecting bind9 package, versions <1:9.16.27-1~deb11u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.17% (56th percentile)

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  • Snyk IDSNYK-DEBIAN11-BIND9-2427689
  • published17 Mar 2022
  • disclosed23 Mar 2022

Introduced: 17 Mar 2022

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

How to fix?

Upgrade Debian:11 bind9 to version 1:9.16.27-1~deb11u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind9 package and not the bind9 package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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

CVSS Scores

version 3.1