CVE-2020-14308: GNU GRUB2

Medium severity, CVSS 6.4. EPSS: 0.4% chance of exploitation in the next 30 days.

In grub2 versions before 2.06 the grub memory allocator doesn't check for possible arithmetic overflows on the requested allocation size. This leads the function to return invalid memory allocations which can be further used to cause possible integrity, confidentiality and availability impacts during the boot process.

Affected products

• GNU GRUB2: before 2.06 (fixed in 2.06)
• Opensuse Leap: version 15.1 only; version 15.2 only

Published 2020-07-29. Last modified 2026-06-17.