SUSE-CU-2021:16-1: Recommended update of suse/sles12sp5

[sle-updates at lists.suse.com]

SUSE Container Update Advisory: suse/sles12sp5
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Container Advisory ID : SUSE-CU-2021:16-1
Container Tags        : suse/sles12sp5:6.5.116 , suse/sles12sp5:latest
Container Release     : 6.5.116
Severity              : moderate
Type                  : recommended
References            : 1178823 
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The container suse/sles12sp5 was updated. The following patches have been included in this update:

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Advisory ID: SUSE-RU-2021:26-1
Released:    Tue Jan  5 14:18:00 2021
Summary:     Recommended update for libxml2
Type:        recommended
Severity:    moderate
References:  1178823
This update for libxml2 fixes the following issues:

Avoid quadratic checking of identity-constraints, speeding up XML validation. (bsc#1178823)

* key/unique/keyref schema attributes currently use quadratic loops
  to check their various constraints (that keys are unique and that
  keyrefs refer to existing keys).
* This fix uses a hash table to avoid the quadratic behaviour.