SUSE-SU-2023:1702-1: important: Security update for shim

sle-security-updates at lists.suse.com sle-security-updates at lists.suse.com
Thu Mar 30 16:30:22 UTC 2023 


# Security update for shim

Announcement ID: SUSE-SU-2023:1702-1  
Rating: important  
References:

  * #1185232
  * #1185261
  * #1185441
  * #1185621
  * #1187071
  * #1187260
  * #1193282
  * #1198458
  * #1201066
  * #1202120
  * #1205588

  
Cross-References:

  * CVE-2022-28737

  
CVSS scores:

  * CVE-2022-28737 ( SUSE ):  8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * Basesystem Module 15-SP4
  * openSUSE Leap 15.4
  * openSUSE Leap Micro 5.3
  * SUSE Enterprise Storage 7.1
  * SUSE Linux Enterprise Desktop 15 SP4
  * SUSE Linux Enterprise High Performance Computing 15 SP3
  * SUSE Linux Enterprise High Performance Computing 15 SP4
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP3
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP3
  * SUSE Linux Enterprise Micro 5.1
  * SUSE Linux Enterprise Micro 5.2
  * SUSE Linux Enterprise Micro 5.3
  * SUSE Linux Enterprise Micro 5.4
  * SUSE Linux Enterprise Micro for Rancher 5.2
  * SUSE Linux Enterprise Micro for Rancher 5.3
  * SUSE Linux Enterprise Micro for Rancher 5.4
  * SUSE Linux Enterprise Real Time 15 SP3
  * SUSE Linux Enterprise Real Time 15 SP4
  * SUSE Linux Enterprise Server 15 SP3
  * SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3
  * SUSE Linux Enterprise Server 15 SP4
  * SUSE Linux Enterprise Server for SAP Applications 15 SP3
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4
  * SUSE Manager Proxy 4.2
  * SUSE Manager Proxy 4.3
  * SUSE Manager Retail Branch Server 4.2
  * SUSE Manager Retail Branch Server 4.3
  * SUSE Manager Server 4.2
  * SUSE Manager Server 4.3

  
  
An update that solves one vulnerability, contains two features and has 10 fixes
can now be installed.

## Description:

This update for shim fixes the following issues:

  * Updated shim signature after shim 15.7 be signed back: signature-
    sles.x86_64.asc, signature-sles.aarch64.asc (bsc#1198458)

  * Add POST_PROCESS_PE_FLAGS=-N to the build command in shim.spec to disable
    the NX compatibility flag when using post-process-pe because grub2 is not
    ready. (bsc#1205588)

  * Enable the NX compatibility flag by default. (jsc#PED-127)

Update to 15.7 (bsc#1198458) (jsc#PED-127):

  * Make SBAT variable payload introspectable
  * Reference MokListRT instead of MokList
  * Add a link to the test plan in the readme.
  * [V3] Enable TDX measurement to RTMR register
  * Discard load-options that start with a NUL
  * Fixed load_cert_file bugs
  * Add -malign-double to IA32 compiler flags
  * pe: Fix image section entry-point validation
  * make-archive: Build reproducible tarball
  * mok: remove MokListTrusted from PCR 7

Other fixes:

  * Support enhance shim measurement to TD RTMR. (jsc#PED-1273)

  * shim-install: ensure grub.cfg created is not overwritten after installing
    grub related files

  * Add logic to shim.spec to only set sbat policy when efivarfs is writeable.
    (bsc#1201066)
  * Add logic to shim.spec for detecting --set-sbat-policy option before using
    mokutil to set sbat policy. (bsc#1202120)
  * Change the URL in SBAT section to mail:security at suse.de. (bsc#1193282)

Update to 15.6 (bsc#1198458):

  * MokManager: removed Locate graphic output protocol fail error message
  * shim: implement SBAT verification for the shim_lock protocol
  * post-process-pe: Fix a missing return code check
  * Update github actions matrix to be more useful
  * post-process-pe: Fix format string warnings on 32-bit platforms
  * Allow MokListTrusted to be enabled by default
  * Re-add ARM AArch64 support
  * Use ASCII as fallback if Unicode Box Drawing characters fail
  * make: don't treat cert.S specially
  * shim: use SHIM_DEVEL_VERBOSE when built in devel mode
  * Break out of the inner sbat loop if we find the entry.
  * Support loading additional certificates
  * Add support for NX (W^X) mitigations.
  * Fix preserve_sbat_uefi_variable() logic
  * SBAT Policy latest should be a one-shot
  * pe: Fix a buffer overflow when SizeOfRawData > VirtualSize
  * pe: Perform image verification earlier when loading grub
  * Update advertised sbat generation number for shim
  * Update SBAT generation requirements for 05/24/22
  * Also avoid CVE-2022-28737 in verify_image() by @vathpela

Update to 15.5 (bsc#1198458):

  * Broken ia32 relocs and an unimportant submodule change.
  * mok: allocate MOK config table as BootServicesData
  * Don't call QueryVariableInfo() on EFI 1.10 machines (bsc#1187260)
  * Relax the check for import_mok_state() (bsc#1185261)
  * SBAT.md: trivial changes
  * shim: another attempt to fix load options handling
  * Add tests for our load options parsing.
  * arm/aa64: fix the size of .rela* sections
  * mok: fix potential buffer overrun in import_mok_state
  * mok: relax the maximum variable size check
  * Don't unhook ExitBootServices when EBS protection is disabled
  * fallback: find_boot_option() needs to return the index for the boot entry in
    optnum
  * httpboot: Ignore case when checking HTTP headers
  * Fallback allocation errors
  * shim: avoid BOOTx64.EFI in message on other architectures
  * str: remove duplicate parameter check
  * fallback: add compile option FALLBACK_NONINTERACTIVE
  * Test mok mirror
  * Modify sbat.md to help with readability.
  * csv: detect end of csv file correctly
  * Specify that the .sbat section is ASCII not UTF-8
  * tests: add "include-fixed" GCC directory to include directories
  * pe: simplify generate_hash()
  * Don't make shim abort when TPM log event fails (RHBZ #2002265)
  * Fallback to default loader if parsed one does not exist
  * fallback: Fix for BootOrder crash when index returned
  * Better console checks
  * docs: update SBAT UEFI variable name
  * Don't parse load options if invoked from removable media path
  * fallback: fix fallback not passing arguments of the first boot option
  * shim: Don't stop forever at "Secure Boot not enabled" notification
  * Allocate mokvar table in runtime memory.
  * Remove post-process-pe on 'make clean'
  * pe: missing perror argument

  * CVE-2022-28737: Fixed a buffer overflow when SizeOfRawData > VirtualSize
    (bsc#1198458)

  * Add mokutil command to post script for setting sbat policy to latest mode
    when the SbatPolicy-605dab50-e046-4300-abb6-3dd810dd8b23 is not created.
    (bsc#1198458)

  * Updated vendor dbx binary and script (bsc#1198458)

  * Updated dbx-cert.tar.xz and vendor-dbx-sles.bin for adding SLES-UEFI-SIGN-
    Certificate-2021-05.crt to vendor dbx list.

  * Updated dbx-cert.tar.xz and vendor-dbx-opensuse.bin for adding openSUSE-
    UEFI-SIGN-Certificate-2021-05.crt to vendor dbx list.
  * Updated vendor-dbx.bin for adding SLES-UEFI-SIGN-Certificate-2021-05.crt and
    openSUSE-UEFI-SIGN-Certificate-2021-05.crt for testing environment.
  * Updated generate-vendor-dbx.sh script for generating a vendor-dbx.bin file
    which includes all .der for testing environment.

  * avoid buffer overflow when copying data to the MOK config table
    (bsc#1185232)

  * Disable exporting vendor-dbx to MokListXRT since writing a large RT variable
    could crash some machines (bsc#1185261)
  * ignore the odd LoadOptions length (bsc#1185232)
  * shim-install: reset def_shim_efi to "shim.efi" if the given file doesn't
    exist
  * relax the maximum variable size check for u-boot (bsc#1185621)
  * handle ignore_db and user_insecure_mode correctly (bsc#1185441, bsc#1187071)

  * Split the keys in vendor-dbx.bin to vendor-dbx-sles and vendor-dbx-opensuse
    for shim-sles and shim-opensuse to reduce the size of MokListXRT
    (bsc#1185261)

  * Also update generate-vendor-dbx.sh in dbx-cert.tar.xz

## Patch Instructions:

To install this SUSE Important update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * openSUSE Leap Micro 5.3  
    zypper in -t patch openSUSE-Leap-Micro-5.3-2023-1702=1

  * openSUSE Leap 15.4  
    zypper in -t patch openSUSE-SLE-15.4-2023-1702=1

  * SUSE Linux Enterprise Micro for Rancher 5.3  
    zypper in -t patch SUSE-SLE-Micro-5.3-2023-1702=1

  * SUSE Linux Enterprise Micro 5.3  
    zypper in -t patch SUSE-SLE-Micro-5.3-2023-1702=1

  * SUSE Linux Enterprise Micro for Rancher 5.4  
    zypper in -t patch SUSE-SLE-Micro-5.4-2023-1702=1

  * SUSE Linux Enterprise Micro 5.4  
    zypper in -t patch SUSE-SLE-Micro-5.4-2023-1702=1

  * Basesystem Module 15-SP4  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP4-2023-1702=1

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP3  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP3-ESPOS-2023-1702=1

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP3  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP3-LTSS-2023-1702=1

  * SUSE Linux Enterprise Real Time 15 SP3  
    zypper in -t patch SUSE-SLE-Product-RT-15-SP3-2023-1702=1

  * SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP3-LTSS-2023-1702=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP3  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP3-2023-1702=1

  * SUSE Manager Proxy 4.2  
    zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Proxy-4.2-2023-1702=1

  * SUSE Manager Retail Branch Server 4.2  
    zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Retail-Branch-
Server-4.2-2023-1702=1

  * SUSE Manager Server 4.2  
    zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Server-4.2-2023-1702=1

  * SUSE Enterprise Storage 7.1  
    zypper in -t patch SUSE-Storage-7.1-2023-1702=1

  * SUSE Linux Enterprise Micro 5.1  
    zypper in -t patch SUSE-SUSE-MicroOS-5.1-2023-1702=1

  * SUSE Linux Enterprise Micro 5.2  
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2023-1702=1

  * SUSE Linux Enterprise Micro for Rancher 5.2  
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2023-1702=1

## Package List:

  * openSUSE Leap Micro 5.3 (aarch64 x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * openSUSE Leap 15.4 (aarch64 x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * SUSE Linux Enterprise Micro 5.3 (aarch64 x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * SUSE Linux Enterprise Micro 5.4 (aarch64 x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * Basesystem Module 15-SP4 (aarch64 x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP3 (aarch64
    x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (aarch64
    x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * SUSE Linux Enterprise Real Time 15 SP3 (x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3 (aarch64 x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP3 (x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * SUSE Manager Proxy 4.2 (x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * SUSE Manager Retail Branch Server 4.2 (x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * SUSE Manager Server 4.2 (x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * SUSE Enterprise Storage 7.1 (aarch64 x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * SUSE Linux Enterprise Micro 5.1 (aarch64 x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * SUSE Linux Enterprise Micro 5.2 (aarch64 x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1
  * SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 x86_64)
    * shim-debugsource-15.7-150300.4.11.1
    * shim-debuginfo-15.7-150300.4.11.1
    * shim-15.7-150300.4.11.1

## References:

  * https://www.suse.com/security/cve/CVE-2022-28737.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1185232
  * https://bugzilla.suse.com/show_bug.cgi?id=1185261
  * https://bugzilla.suse.com/show_bug.cgi?id=1185441
  * https://bugzilla.suse.com/show_bug.cgi?id=1185621
  * https://bugzilla.suse.com/show_bug.cgi?id=1187071
  * https://bugzilla.suse.com/show_bug.cgi?id=1187260
  * https://bugzilla.suse.com/show_bug.cgi?id=1193282
  * https://bugzilla.suse.com/show_bug.cgi?id=1198458
  * https://bugzilla.suse.com/show_bug.cgi?id=1201066
  * https://bugzilla.suse.com/show_bug.cgi?id=1202120
  * https://bugzilla.suse.com/show_bug.cgi?id=1205588
  * https://jira.suse.com/browse/PED-127
  * https://jira.suse.com/browse/PED-1273

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