#VU32922 Out-of-bounds Write in grub - CVE-2020-10713
Published: July 30, 2020 / Updated: July 30, 2020
Vulnerability identifier: #VU32922
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2020-10713
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vulnerable software:
grub
grub
Software vendor:
GNU
GNU
Description
The vulnerability allows a local attacker to compromise vulnerable system.
The vulnerability exists due to a "BootHole" issue. An attacker with physical access can install persistent and stealthy bootkits or malicious bootloaders, trigger out-of-bounds write and execute arbitrary code on the target system.
Remediation
Install updates from vendor's website.