Expected Behavior Violation Affecting shim-ia32 package, versions <0:15-14.el8_2
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Test your applications- Snyk ID SNYK-CENTOS8-SHIMIA32-2045251
- published 26 Jul 2021
- disclosed 29 Jul 2020
Introduced: 29 Jul 2020
CVE-2020-15705 Open this link in a new tabHow to fix?
Upgrade Centos:8 shim-ia32 to version 0:15-14.el8_2 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.
GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions.
References
- https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011
- https://security.netapp.com/advisory/ntap-20200731-0008/
- https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/
- https://www.openwall.com/lists/oss-security/2020/07/29/3
- https://access.redhat.com/security/cve/CVE-2020-15705
- https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot
- https://security.gentoo.org/glsa/202104-05
- http://www.openwall.com/lists/oss-security/2020/07/29/3
- http://www.openwall.com/lists/oss-security/2021/03/02/3
- http://www.openwall.com/lists/oss-security/2021/09/17/2
- http://www.openwall.com/lists/oss-security/2021/09/17/4
- http://www.openwall.com/lists/oss-security/2021/09/21/1
- https://access.redhat.com/security/vulnerabilities/grub2bootloader
- https://access.redhat.com/errata/RHSA-2020:3216
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00067.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00069.html
- https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/
- https://www.suse.com/support/kb/doc/?id=000019673
- https://usn.ubuntu.com/4432-1/
- https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass
- http://ubuntu.com/security/notices/USN-4432-1