Mageia: 2021-0318 Moderate Risk of GLib Buffer Overflow Vulnerability

Krzesimir Nowak discovered that GLib incorrectly handled certain large buffers. A remote attacker could use this issue to cause applications linked to GLib to crash, resulting in a denial of service, or possibly execute arbitrary code (CVE-2021-27218).
Kevin Backhouse discovered that GLib incorrectly handled certain memory allocations. A remote attacker could use this issue to cause applications linked to GLib to crash, resulting in a denial of service, or possibly execute arbitrary code (CVE-2021-27219).
It was discovered that GLib incorrectly handled certain symlinks when replacing files. If a user or automated system were tricked into extracting a specially crafted file with File Roller, a remote attacker could possibly create files outside of the intended directory (CVE-2021-28153).