Security update for pcr-oracle, shim

Announcement ID: SUSE-SU-2025:20136-1
Release Date: 2025-03-07T15:31:39Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2023-40546 ( SUSE ): 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
  • CVE-2023-40546 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2023-40546 ( NVD ): 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2023-40547 ( SUSE ): 7.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
  • CVE-2023-40547 ( NVD ): 8.3 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
  • CVE-2023-40547 ( NVD ): 8.3 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
  • CVE-2023-40548 ( SUSE ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  • CVE-2023-40548 ( NVD ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2023-40548 ( NVD ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2023-40549 ( SUSE ): 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
  • CVE-2023-40549 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2023-40549 ( NVD ): 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2023-40550 ( SUSE ): 4.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
  • CVE-2023-40550 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  • CVE-2023-40550 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  • CVE-2023-40551 ( SUSE ): 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
  • CVE-2023-40551 ( NVD ): 5.1 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H
  • CVE-2023-40551 ( NVD ): 5.1 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H
Affected Products:
  • SUSE Linux Micro 6.0

An update that solves six vulnerabilities and has one fix can now be installed.

Description:

This update for pcr-oracle, shim fixes the following issues:

pcr-oracle:

  • predict SbatLevelRT for the next boot (bsc#1230316)

shim was updated to version 15.8:

  • Update shim-install to use the 'removable' way for encrypted SL-Micro images (bsc#1230316)
  • Always use the removable way for SL-Micro
  • Limit the removable option to encrypted SL-Micro

Security issues fixed:

  • mok: fix LogError() invocation (bsc#1215099,CVE-2023-40546)
  • avoid incorrectly trusting HTTP headers (bsc#1215098,CVE-2023-40547)
  • Fix integer overflow on SBAT section size on 32-bit system (bsc#1215100,CVE-2023-40548)
  • Authenticode: verify that the signature header is in bounds (bsc#1215101,CVE-2023-40549)
  • pe: Fix an out-of-bound read in verify_buffer_sbat() (bsc#1215102,CVE-2023-40550)
  • pe-relocate: Fix bounds check for MZ binaries (bsc#1215103,CVE-2023-40551)

Patch Instructions:

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

  • SUSE Linux Micro 6.0
    zypper in -t patch SUSE-SLE-Micro-6.0-225=1

Package List:

  • SUSE Linux Micro 6.0 (aarch64 x86_64)
    • shim-15.8-1.1
    • pcr-oracle-debugsource-0.4.6-2.1
    • pcr-oracle-0.4.6-2.1
    • pcr-oracle-debuginfo-0.4.6-2.1
    • shim-debugsource-15.8-1.1
    • shim-debuginfo-15.8-1.1

References: