CVE-2020-14372
Severity
7.5HIGH
EPSS
1.9%
top 16.84%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 3
Latest updateMay 24
Description
A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enables the usage of the ACPI command when Secure Boot is enabled. This flaw allows an attacker with privileged access to craft a Secondary System Description Table (SSDT) containing code to overwrite the Linux kernel lockdown variable content directly into memory. The table is further loaded and executed by the kernel, defeating its Secure Boot lockdown and allowing the attacker to load unsigned code. The highest threat f…
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:HExploitability: 0.8 | Impact: 6.0
Affected Packages6 packages
Also affects: Enterprise Linux 7.0, 8.0, 7.2, 7.3, 7.4, 7.6, 7.7, 8.2, 8.1, Fedora 33, 34
Patches
🔴Vulnerability Details
4💥Exploits & PoCs
1📋Vendor Advisories
4Microsoft▶
A flaw was found in grub2 in versions prior to 2.06 where it incorrectly enables the usage of the ACPI command when Secure Boot is enabled. This flaw allows an attacker with privileged access to craft↗2021-03-09
Red Hat▶
grub2: acpi command allows privileged user to load crafted ACPI tables when Secure Boot is enabled↗2021-03-02
Debian▶
CVE-2020-14372: grub2 - A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enable...↗2020
💬Community
1Bugzilla▶
CVE-2020-14372 grub2: acpi command allows privileged user to load crafted ACPI tables when Secure Boot is enabled↗2020-08-27