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OpenAdvisories
High RHSA-2021:1476 1 CVE

Red Hat Security Advisory: bind security update

Published Sep 16, 2024 · Updated Jun 26, 2026

Ecosystem: Red Hat

Fixed packages 15

ReleasePackageFixed in
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind 32:9.9.4-29.el7_2.11
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-chroot 32:9.9.4-29.el7_2.11
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-debuginfo 32:9.9.4-29.el7_2.11
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-devel 32:9.9.4-29.el7_2.11
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-libs 32:9.9.4-29.el7_2.11
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-libs-lite 32:9.9.4-29.el7_2.11
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-license 32:9.9.4-29.el7_2.11
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-lite-devel 32:9.9.4-29.el7_2.11
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-pkcs11 32:9.9.4-29.el7_2.11
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-pkcs11-devel 32:9.9.4-29.el7_2.11
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-pkcs11-libs 32:9.9.4-29.el7_2.11
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-pkcs11-utils 32:9.9.4-29.el7_2.11
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-sdb 32:9.9.4-29.el7_2.11
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-sdb-chroot 32:9.9.4-29.el7_2.11
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-utils 32:9.9.4-29.el7_2.11

Vulnerabilities 1

  • High 7.5
    CVE-2021-25215 EPSS 12%

    An assertion check can fail while answering queries for DNAME records that require the DNAME to be processed to resolve itself

    In BIND 9.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version o…

    ISC BIND9 bind9 bind9 Debian Ubuntu Alpine

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1953857
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_1476.json
  • report
    https://access.redhat.com/security/cve/CVE-2021-25215
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2021-25215
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2021-25215
  • article
    https://kb.isc.org/docs/cve-2021-25215