[ubuntu/focal-updates] shim 15.7-0ubuntu1 (Accepted)

Łukasz Zemczak lukasz.zemczak at canonical.com
Thu Feb 16 11:10:58 UTC 2023


shim (15.7-0ubuntu1) kinetic; urgency=medium

  * New upstream version 15.7 (LP: #1996503), highlights:
    - Enable TDX measurements (LP: #1995852)
    - Flush the memory region from i-cache before execution (LP: #1987541)
    - Introspectable SBAT payload for TPM resealing efforts
    - Don't measure MokListTrusted to PCR7
    - SBAT level: shim,3
    - SBAT policy bumped to for grub,2 in previous and grub,3 in latest:
      SBAT policy: latest="shim,2\ngrub,3\n" previous="grub,2\n"
      Note that shim requirement was not bumped as shim,2 shims are not
      commonly available yet.
  * SECURITY FIX: Buffer overflow when loading crafted EFI images.
    - CVE-2022-28737
  * Rebase patches, only ubuntu-no-addend-vendor-dbx.patch remains
  * Import 20221103 Canonical vendor dbx.
    This vendor dbx revokes all certificates that have been used
    so far.
    - CN = Canonical Ltd. Secure Boot Signing
    - CN = Canonical Ltd. Secure Boot Signing (2017)
    - CN = Canonical Ltd. Secure Boot Signing (ESM 2018)
    - CN = Canonical Ltd. Secure Boot Signing (2019)
    - CN = Canonical Ltd. Secure Boot Signing (Ubuntu Core 2019)
    - CN = Canonical Ltd. Secure Boot Signing (2021 v1)
    - CN = Canonical Ltd. Secure Boot Signing (2021 v2)
    - CN = Canonical Ltd. Secure Boot Signing (2021 v3)
  * Build-Depend on libefivar-dev
  * debian/rules: Update COMMIT_ID

Date: 2022-11-18 16:58:10.208365+00:00
Changed-By: Julian Andres Klode <julian.klode at canonical.com>
Signed-By: Łukasz Zemczak <lukasz.zemczak at canonical.com>
https://launchpad.net/ubuntu/+source/shim/15.7-0ubuntu1
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