SUSE-RU-2021:3022-2: important: Recommended update for c-ares

[sle-updates at lists.suse.com]

   SUSE Recommended Update: Recommended update for c-ares
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Announcement ID:    SUSE-RU-2021:3022-2
Rating:             important
References:         #1190225 
Affected Products:
                    SUSE MicroOS 5.1
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   An update that has one recommended fix can now be installed.

Description:

   This update for c-ares fixes the following issue:

   - Allow '_' as part of DNS response. (bsc#1190225)
     - 'c-ares' 1.17.2 introduced response validation to prevent a security
       issue, however it was not listing '_' as a valid character for domain
       name responses which caused issues when a 'CNAME' referenced a 'SRV'
       record which contained underscores.


Patch Instructions:

   To install this SUSE Recommended Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - SUSE MicroOS 5.1:

      zypper in -t patch SUSE-SUSE-MicroOS-5.1-2021-3022=1



Package List:

   - SUSE MicroOS 5.1 (aarch64 s390x x86_64):

      c-ares-debugsource-1.17.1+20200724-3.17.1
      libcares2-1.17.1+20200724-3.17.1
      libcares2-debuginfo-1.17.1+20200724-3.17.1


References:

   https://bugzilla.suse.com/1190225