Security update for bind (important)

An update that fixes two vulnerabilities is now available.

Description:

This update for bind fixes the following issues:

• CVE-2021-25214: Fixed a broken inbound incremental zone update (IXFR)
  which could have caused named to terminate unexpectedly (bsc#1185345).
• CVE-2021-25215: Fixed an assertion check which could have failed while
  answering queries for DNAME records that required the DNAME to be
  processed to resolve itself (bsc#1185345).
• make /usr/bin/delv in bind-tools position independent (bsc#1183453).

This update was imported from the SUSE:SLE-15:Update update project.

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or “zypper patch”.

Alternatively you can run the command listed for your product:

• openSUSE Leap 15.2:

  zypper in -t patch openSUSE-2021-668=1