openSUSE-SU-2019:0095-1

Description of the patch:

This update for singularity to version 2.6.1 fixes the following issues:

Security issues fixed:

• CVE-2018-19295: Mount points are not mounted with shared mount propagation by default anymore, as this may result in privilege escalation (boo#1111411).
• CVE-2018-12021: Fixed a incorrect access control issues on systems supporting overlay file system (boo#1100333).