U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

NOTICE UPDATED - May, 29th 2024

The NVD has a new announcement page with status updates, news, and how to stay connected!

CVE-2020-15706 Detail

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
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 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') cwe source acceptance level NIST   Canonical Ltd.  
CWE-416 Use After Free cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

10 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-15706
NVD Published Date:
07/29/2020
NVD Last Modified:
11/15/2022
Source:
Canonical Ltd.