CVEvulnerability
CVE-2020-15706
6.4 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-07-29
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.4 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 6.4 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 4.4 MEDIUM — AV:L/AC:M/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-362, CWE-416
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.
Affected configurations
• gnu grub2 (<= 2.04)
• redhat enterprise linux atomic host
• redhat openshift container platform 4.0
• canonical ubuntu linux 14.04
• canonical ubuntu linux 16.04
• canonical ubuntu linux 18.04
• canonical ubuntu linux 20.04
• debian debian linux 10.0
• redhat enterprise linux 7.0
• redhat enterprise linux 8.0
• suse suse linux enterprise server 11
• suse suse linux enterprise server 12
• suse suse linux enterprise server 15
• microsoft windows 10
• microsoft windows 10 1607
• microsoft windows 10 1709
• microsoft windows 10 1803
• microsoft windows 10 1809
• microsoft windows 10 1903
• microsoft windows 10 1909
• microsoft windows 10 2004
• microsoft windows 8.1
• microsoft windows rt 8.1
• microsoft windows server 2012
• microsoft windows server 2012 r2
• microsoft windows server 2016
• microsoft windows server 2016 1903
• microsoft windows server 2016 1909
• microsoft windows server 2016 2004
• microsoft windows server 2019
• opensuse leap 15.1
• opensuse leap 15.2
Related
References
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html Broken Link, Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html Broken Link, Mailing List, Third Party Advisory
- http://ubuntu.com/security/notices/USN-4432-1 Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/07/29/3 Mailing List, Third Party Advisory
- https://access.redhat.com/security/vulnerabilities/grub2bootloader Third Party Advisory
- https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html Issue Tracking, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011 Patch, Third Party Advisory, Vendor Advisory
- https://security.gentoo.org/glsa/202104-05 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200731-0008/ Third Party Advisory
- https://usn.ubuntu.com/4432-1/ 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://www.debian.org/security/2020/dsa-4735 Third Party Advisory
- https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/ Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/07/29/3 Mailing List, Third Party Advisory
- https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/ Third Party Advisory
- https://www.suse.com/support/kb/doc/?id=000019673 Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html Broken Link, Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html Broken Link, Mailing List, Third Party Advisory
- http://ubuntu.com/security/notices/USN-4432-1 Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/07/29/3 Mailing List, Third Party Advisory
- https://access.redhat.com/security/vulnerabilities/grub2bootloader Third Party Advisory
- https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html Issue Tracking, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011 Patch, Third Party Advisory, Vendor Advisory
- https://security.gentoo.org/glsa/202104-05 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200731-0008/ Third Party Advisory
- https://usn.ubuntu.com/4432-1/ 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://www.debian.org/security/2020/dsa-4735 Third Party Advisory
- https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/ Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/07/29/3 Mailing List, Third Party Advisory
- https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/ Third Party Advisory
- https://www.suse.com/support/kb/doc/?id=000019673 Third Party Advisory