Ubuntu
shim-signed package

shim-signed 1.57 source package in Ubuntu

Changelog

shim-signed (1.57) mantic; urgency=medium

  * New upstream version 15.8 (LP: #2051151):
    - pe: Align section size up to page size for mem attrs (LP: #2036604)
    - SBAT level: shim,4
    - SBAT policy:
      - Latest: "shim,4\ngrub,3\ngrub.debian,4\n"
      - Automatic: "shim,2\ngrub,3\ngrub.debian,4\n"
      - Note that this does not yet revoke pre NTFS CVE fix GRUB binaries.
  * SECURITY UPDATE: a bug in an error message [LP: #2051151]
    - mok: fix LogError() invocation
    - CVE-2023-40546
  * SECURITY UPDATE: out-of-bounds write and UEFI Secure Boot bypass
    when booting via HTTP [LP: #2051151]
    - avoid incorrectly trusting HTTP headers
    - CVE-2023-40547
  * SECURITY UPDATE: out-of-bounds write and possible bug [LP: #2051151]
    - Fix integer overflow on SBAT section size on 32-bit system
    - CVE-2023-40548
  * SECURITY UPDATE: out-of-bounds read and possible bug [LP: #2051151]
    - Authenticode: verify that the signature header is in bounds.
    - CVE-2023-40549
  * SECURITY UPDATE: out-of-bounds read and possible bug [LP: #2051151]
    - pe: Fix an out-of-bound read in verify_buffer_sbat()
    - CVE-2023-40550
  * SECURITY UPDATE: out-of-bounds read and possible bug [LP: #2051151]
    - pe-relocate: Fix bounds check for MZ binaries
    - CVE-2023-40551
  * Makefile: Add option for building without an externally signed shim

 -- Mate Kukri <email address hidden>  Thu, 29 Feb 2024 10:26:43 +0000

Upload details

Uploaded by:
Mate Kukri
Uploaded to:
Mantic
Original maintainer:
Steve Langasek
Architectures:
amd64 arm64
Section:
utils
Urgency:
Medium Urgency

See full publishing history Publishing

Series Pocket Published Component Section

Builds

Mantic: [FULLYBUILT] amd64 [FULLYBUILT] arm64

Downloads

File Size SHA-256 Checksum
shim-signed_1.57.tar.xz 902.4 KiB 953843d44e515f80edc42d4ce8eaf1a87b1b95b69fe312a1be1e8cd7f8abf826
shim-signed_1.57.dsc 1.5 KiB 4b4104fbeffc4088a5390c6a8951e08ec10d57fc19a3f373911543c0b1c57669

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Binary packages built by this source

shim-signed: Secure Boot chain-loading bootloader (Microsoft-signed binary)

 This package provides a minimalist boot loader which allows verifying
 signatures of other UEFI binaries against either the Secure Boot DB/DBX or
 against a built-in signature database. Its purpose is to allow a small,
 infrequently-changing binary to be signed by the UEFI CA, while allowing
 an OS distributor to revision their main bootloader independently of the CA.
 .
 This package contains the version of the bootloader binary signed by the
 Microsoft UEFI CA.