CVE-2020-15706

Name
CVE-2020-15706
Description
GRUB2 contains a race condition in grub_script_function_create() leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing, leading to arbitrary code execution and secure boot restriction bypass. This issue affects GRUB2 version 2.04 and prior versions.
NVD Severity
medium
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Third Party Advisory https://www.suse.com/support/kb/doc/?id=000019673
Third Party Advisory http://ubuntu.com/security/notices/USN-4432-1
Issue Tracking https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html
Third Party Advisory https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass
Third Party Advisory https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot
Third Party Advisory https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011
Third Party Advisory https://access.redhat.com/security/vulnerabilities/grub2bootloader
Third Party Advisory https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/
Third Party Advisory https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/
Mailing List https://www.openwall.com/lists/oss-security/2020/07/29/3
Third Party Advisory https://www.debian.org/security/2020/dsa-4735
Mailing List http://www.openwall.com/lists/oss-security/2020/07/29/3
Third Party Advisory https://security.netapp.com/advisory/ntap-20200731-0008/
UBUNTU https://usn.ubuntu.com/4432-1/
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html
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 <= 2.04

Vulnerable and fixed packages

Source package Branch Version Maintainer Status