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CVE-2020-25632 Details
Description
A flaw was found in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or a bypass of Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1879577 | CVE | Issue TrackingPatchThird Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/ | CVE | |
| https://security.gentoo.org/glsa/202104-05 | CVE | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220325-0001/ | CVE | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1879577 | [email protected] | Issue TrackingPatchThird Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/ | [email protected] | |
| https://security.gentoo.org/glsa/202104-05 | [email protected] | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220325-0001/ | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| gnu grub2 | < 2.06 |
CPE
Remediation
| |
| redhat enterprise linux | 7.0 8.0 |
CPE
Remediation
| |
| redhat enterprise linux server aus | 7.2 7.3 7.4 7.6 7.7 8.2 |
CPE
Remediation
| |
| redhat enterprise linux server eus | 7.6 7.7 8.1 |
CPE
Remediation
| |
| redhat enterprise linux server tus | 7.4 7.6 7.7 8.2 |
CPE
Remediation
| |
| redhat enterprise linux workstation | 7.0 |
CPE
Remediation
| |
| fedoraproject fedora | 33 34 |
CPE
Remediation
| |
| netapp ontap select deploy administration utility | All versions |
CPE
Remediation
| |
Change History
10 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Nov 7, 2023 | CVE Modified | [email protected] |
| May 13, 2022 | Modified Analysis | [email protected] |
| Mar 25, 2022 | CVE Modified | [email protected] |
| Dec 16, 2021 | Modified Analysis | [email protected] |
| May 1, 2021 | CVE Modified | [email protected] |
| Apr 23, 2021 | CVE Modified | [email protected] |
| Mar 10, 2021 | Initial Analysis | [email protected] |