The Grub2 Project Grub2 vulnerabilities

2 vulnerabilities

Known vulnerabilities in The Grub2 Project Grub2, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

6CVE-2020-14310alpinegrub+12
EPSS score
0.48%
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.6CVE-2020-14311alpinegrub+12
EPSS score
0.46%
There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow.