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Red Hat: CVE-2020-8619: CVE-2020-8619 bind: asterisk character in an empty non-terminal can cause an assertion failure in rbtdb.c (Multiple Advisories)

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Red Hat: CVE-2020-8619: CVE-2020-8619 bind: asterisk character in an empty non-terminal can cause an assertion failure in rbtdb.c (Multiple Advisories)

Severity
4
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:P)
Published
06/17/2020
Created
11/06/2020
Added
11/05/2020
Modified
11/26/2024

Description

In ISC BIND9 versions BIND 9.11.14 -> 9.11.19, BIND 9.14.9 -> 9.14.12, BIND 9.16.0 -> 9.16.3, BIND Supported Preview Edition 9.11.14-S1 -> 9.11.19-S1: Unless a nameserver is providing authoritative service for one or more zones and at least one zone contains an empty non-terminal entry containing an asterisk ("*") character, this defect cannot be encountered. A would-be attacker who is allowed to change zone content could theoretically introduce such a record in order to exploit this condition to cause denial of service, though we consider the use of this vector unlikely because any such attack would require a significant privilege level and be easily traceable.

Solution(s)

  • redhat-upgrade-bind
  • redhat-upgrade-bind-chroot
  • redhat-upgrade-bind-debuginfo
  • redhat-upgrade-bind-debugsource
  • redhat-upgrade-bind-devel
  • redhat-upgrade-bind-export-devel
  • redhat-upgrade-bind-export-libs
  • redhat-upgrade-bind-export-libs-debuginfo
  • redhat-upgrade-bind-libs
  • redhat-upgrade-bind-libs-debuginfo
  • redhat-upgrade-bind-libs-lite
  • redhat-upgrade-bind-libs-lite-debuginfo
  • redhat-upgrade-bind-license
  • redhat-upgrade-bind-lite-devel
  • redhat-upgrade-bind-pkcs11
  • redhat-upgrade-bind-pkcs11-debuginfo
  • redhat-upgrade-bind-pkcs11-devel
  • redhat-upgrade-bind-pkcs11-libs
  • redhat-upgrade-bind-pkcs11-libs-debuginfo
  • redhat-upgrade-bind-pkcs11-utils
  • redhat-upgrade-bind-pkcs11-utils-debuginfo
  • redhat-upgrade-bind-sdb
  • redhat-upgrade-bind-sdb-chroot
  • redhat-upgrade-bind-sdb-debuginfo
  • redhat-upgrade-bind-utils
  • redhat-upgrade-bind-utils-debuginfo
  • redhat-upgrade-python3-bind

References

  • CVE-2020-8619
  • RHSA-2020:4500

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