Mageia 2021-0413: libass security update

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Updated libass packages fix security vulnerability: libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction (CVE-2020-36430).

Mageia 2021-0412: opencontainers-runc security update

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runc before 1.0.0-rc95 allows a Container Filesystem Breakout via Directory Traversal. To exploit the vulnerability, an attacker must be able to create multiple containers with a fairly specific mount configuration. The problem occurs via a symlink-exchange attack that relies on a race condition (CVE-2021-30465).