Use After Free Affecting shim-ia32 package, versions <0:15.4-2.el8_1
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Test your applications- Snyk ID SNYK-CENTOS8-SHIMIA32-2102251
- published 26 Jul 2021
- disclosed 2 Mar 2021
Introduced: 2 Mar 2021
CVE-2020-25632 Open this link in a new tabHow to fix?
Upgrade Centos:8 shim-ia32 to version 0:15.4-2.el8_1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream shim-ia32 package and not the shim-ia32 package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2020-25632
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/
- https://security.gentoo.org/glsa/202104-05
- https://bugzilla.redhat.com/show_bug.cgi?id=1879577
- https://access.redhat.com/errata/RHSA-2021:1734
- https://security.netapp.com/advisory/ntap-20220325-0001/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/