• Published Date: Fri 31 Jul 2020
  • Last Modified Date: Sat 08 Aug 2020

There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow.

References (Advisories, Solutions, and Tools):

Note: This page is generated by our securitybot and has not been checked for errors. Feed Source: NVD