CVE-2020-14372

Name
CVE-2020-14372
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 from this vulnerability is to data confidentiality and integrity, as well as system availability.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Patch https://access.redhat.com/security/vulnerabilities/RHSB-2021-003
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1873150
CONFIRM https://security.netapp.com/advisory/ntap-20210416-0004/
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/
GENTOO https://security.gentoo.org/glsa/202104-05

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:* grub2 >= None < 2.06

Vulnerable and fixed packages

Source package Branch Version Maintainer Status