Heap-based buffer overflow in grub - CVE-2020-14308
Published: July 30, 2020
Vulnerability identifier: #VU32923
CSH Severity: Low
CVSS v4.0: 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:U/U:Clear
CVE-ID: CVE-2020-14308
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: GNU
Affected software:
grub
grub
Detailed vulnerability description
The vulnerability allows a local attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error. An attacker with physical access can trigger heap-based buffer overflow and execute arbitrary code on the target system during the boot process.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2020-14308
Install updates from vendor's website.