SUSE-SU-2020:2629-1

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Source
https://www.suse.com/support/update/announcement/2020/suse-su-20202629-1/
Import Source
https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2020:2629-1.json
JSON Data
https://api.osv.dev/v1/vulns/SUSE-SU-2020:2629-1
Related
Published
2020-09-14T16:12:03Z
Modified
2020-09-14T16:12:03Z
Summary
Security update for shim
Details

This update for shim fixes the following issues:

This update addresses the 'BootHole' security issue (master CVE CVE-2020-10713), by disallowing binaries signed by the previous SUSE UEFI signing key from booting.

This update should only be installed after updates of grub2, the Linux kernel and (if used) Xen from July / August 2020 are applied.

Changes:

Use vendor-dbx to block old SUSE/openSUSE signkeys (bsc#1168994)

  • Add dbx-cert.tar.xz which contains the certificates to block and a script, generate-vendor-dbx.sh, to generate vendor-dbx.bin

  • Add vendor-dbx.bin as the vendor dbx to block unwanted keys

  • Update the path to grub-tpm.efi in shim-install (bsc#1174320)

  • Only check EFI variable copying when Secure Boot is enabled (bsc#1173411)
  • Use the full path of efibootmgr to avoid errors when invoking shim-install from packagekitd (bsc#1168104)
  • shim-install: add check for btrfs is used as root file system to enable relative path lookup for file. (bsc#1153953)
  • shim-install: install MokManager to \EFI\boot to process the pending MOK request (bsc#1175626, bsc#1175656)
References

Affected packages

SUSE:Linux Enterprise Module for Basesystem 15 SP1 / shim

Package

Name
shim
Purl
pkg:rpm/suse/shim&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
15+git47-3.8.1

Ecosystem specific 

{
    "binaries": [
        {
            "shim": "15+git47-3.8.1"
        }
    ]
}

SUSE:Linux Enterprise Module for Basesystem 15 SP2 / shim

Package

Name
shim
Purl
pkg:rpm/suse/shim&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
15+git47-3.8.1

Ecosystem specific 

{
    "binaries": [
        {
            "shim": "15+git47-3.8.1"
        }
    ]
}