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OpenAdvisories
High RHSA-2020:3471 2 CVEs

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_2.9
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-chroot 32:9.9.4-29.el7_2.9
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-debuginfo 32:9.9.4-29.el7_2.9
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-devel 32:9.9.4-29.el7_2.9
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-libs 32:9.9.4-29.el7_2.9
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-libs-lite 32:9.9.4-29.el7_2.9
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-license 32:9.9.4-29.el7_2.9
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-lite-devel 32:9.9.4-29.el7_2.9
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-pkcs11 32:9.9.4-29.el7_2.9
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-pkcs11-devel 32:9.9.4-29.el7_2.9
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-pkcs11-libs 32:9.9.4-29.el7_2.9
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-pkcs11-utils 32:9.9.4-29.el7_2.9
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-sdb 32:9.9.4-29.el7_2.9
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-sdb-chroot 32:9.9.4-29.el7_2.9
Red Hat · RHEL 7.2 AUS rhel_aus:7.2::server bind-utils 32:9.9.4-29.el7_2.9

Vulnerabilities 2

  • High 8.6
    CVE-2020-8616 EPSS 11%

    BIND does not sufficiently limit the number of fetches performed when processing referrals

    A malicious actor who intentionally exploits this lack of effective limitation on the number of fetches performed when processing referrals can, through the use of specially crafted referrals, cause a recursing server to issue a very large number of fetches i…

    ISC BIND9 bind9 bind9 Debian Ubuntu Alpine
  • High 7.5
    CVE-2020-8617 Public exploit EPSS 93%

    A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c

    Using a specially-crafted message, an attacker may potentially cause a BIND server to reach an inconsistent state if the attacker knows (or successfully guesses) the name of a TSIG key used by the server. Since BIND, by default, configures a local session key…

    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=1836118
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1836124
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_3471.json
  • report
    https://access.redhat.com/security/cve/CVE-2020-8616
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2020-8616
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2020-8616
  • article
    https://kb.isc.org/docs/cve-2020-8616
  • article
    https://www.theregister.co.uk/2020/05/21/nxnaattack_bug_disclosed/
  • report
    https://access.redhat.com/security/cve/CVE-2020-8617
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2020-8617
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2020-8617
  • article
    https://kb.isc.org/docs/cve-2020-8617