SUSE-SU-2023:4140-1: important: Security update for grub2

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Fri Oct 20 12:30:21 UTC 2023 


# Security update for grub2

Announcement ID: SUSE-SU-2023:4140-1  
Rating: important  
References:

  * bsc#1201300
  * bsc#1215935
  * bsc#1215936

  
Cross-References:

  * CVE-2023-4692
  * CVE-2023-4693

  
CVSS scores:

  * CVE-2023-4692 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2023-4693 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

  
Affected Products:

  * Basesystem Module 15-SP4
  * Server Applications Module 15-SP4
  * SUSE Linux Enterprise Desktop 15 SP4
  * SUSE Linux Enterprise High Performance Computing 15 SP4
  * SUSE Linux Enterprise Micro 5.3
  * SUSE Linux Enterprise Micro 5.4
  * SUSE Linux Enterprise Micro for Rancher 5.3
  * SUSE Linux Enterprise Micro for Rancher 5.4
  * SUSE Linux Enterprise Real Time 15 SP4
  * SUSE Linux Enterprise Server 15 SP4
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4
  * SUSE Manager Proxy 4.3
  * SUSE Manager Proxy 4.3 Module 4.3
  * SUSE Manager Retail Branch Server 4.3
  * SUSE Manager Server 4.3

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

## Description:

This update for grub2 fixes the following issues:

Security fixes: \- CVE-2023-4692: Fixed an out-of-bounds write at fs/ntfs.c
which may lead to unsigned code execution. (bsc#1215935) \- CVE-2023-4693: Fixed
an out-of-bounds read at fs/ntfs.c which may lead to leak sensitive information.
(bsc#1215936)

Other fixes: \- Fix a boot delay issue in PowerPC PXE boot (bsc#1201300)

## 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 Enterprise Micro for Rancher 5.3  
    zypper in -t patch SUSE-SLE-Micro-5.3-2023-4140=1

  * SUSE Linux Enterprise Micro 5.3  
    zypper in -t patch SUSE-SLE-Micro-5.3-2023-4140=1

  * SUSE Linux Enterprise Micro for Rancher 5.4  
    zypper in -t patch SUSE-SLE-Micro-5.4-2023-4140=1

  * SUSE Linux Enterprise Micro 5.4  
    zypper in -t patch SUSE-SLE-Micro-5.4-2023-4140=1

  * Basesystem Module 15-SP4  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP4-2023-4140=1

  * Server Applications Module 15-SP4  
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP4-2023-4140=1

  * SUSE Manager Proxy 4.3 Module 4.3  
    zypper in -t patch SUSE-SLE-Module-SUSE-Manager-Proxy-4.3-2023-4140=1

## Package List:

  * SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 s390x x86_64)
    * grub2-2.06-150400.11.38.1
    * grub2-debugsource-2.06-150400.11.38.1
    * grub2-debuginfo-2.06-150400.11.38.1
  * SUSE Linux Enterprise Micro for Rancher 5.3 (noarch)
    * grub2-snapper-plugin-2.06-150400.11.38.1
    * grub2-x86_64-efi-2.06-150400.11.38.1
    * grub2-i386-pc-2.06-150400.11.38.1
    * grub2-arm64-efi-2.06-150400.11.38.1
    * grub2-x86_64-xen-2.06-150400.11.38.1
  * SUSE Linux Enterprise Micro for Rancher 5.3 (s390x)
    * grub2-s390x-emu-2.06-150400.11.38.1
  * SUSE Linux Enterprise Micro 5.3 (aarch64 s390x x86_64)
    * grub2-2.06-150400.11.38.1
    * grub2-debugsource-2.06-150400.11.38.1
    * grub2-debuginfo-2.06-150400.11.38.1
  * SUSE Linux Enterprise Micro 5.3 (noarch)
    * grub2-snapper-plugin-2.06-150400.11.38.1
    * grub2-x86_64-efi-2.06-150400.11.38.1
    * grub2-i386-pc-2.06-150400.11.38.1
    * grub2-arm64-efi-2.06-150400.11.38.1
    * grub2-x86_64-xen-2.06-150400.11.38.1
  * SUSE Linux Enterprise Micro 5.3 (s390x)
    * grub2-s390x-emu-2.06-150400.11.38.1
  * SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 s390x x86_64)
    * grub2-2.06-150400.11.38.1
    * grub2-debugsource-2.06-150400.11.38.1
    * grub2-debuginfo-2.06-150400.11.38.1
  * SUSE Linux Enterprise Micro for Rancher 5.4 (noarch)
    * grub2-snapper-plugin-2.06-150400.11.38.1
    * grub2-x86_64-efi-2.06-150400.11.38.1
    * grub2-i386-pc-2.06-150400.11.38.1
    * grub2-arm64-efi-2.06-150400.11.38.1
    * grub2-x86_64-xen-2.06-150400.11.38.1
  * SUSE Linux Enterprise Micro for Rancher 5.4 (s390x)
    * grub2-s390x-emu-2.06-150400.11.38.1
  * SUSE Linux Enterprise Micro 5.4 (aarch64 s390x x86_64)
    * grub2-2.06-150400.11.38.1
    * grub2-debugsource-2.06-150400.11.38.1
    * grub2-debuginfo-2.06-150400.11.38.1
  * SUSE Linux Enterprise Micro 5.4 (noarch)
    * grub2-snapper-plugin-2.06-150400.11.38.1
    * grub2-x86_64-efi-2.06-150400.11.38.1
    * grub2-i386-pc-2.06-150400.11.38.1
    * grub2-arm64-efi-2.06-150400.11.38.1
    * grub2-x86_64-xen-2.06-150400.11.38.1
  * SUSE Linux Enterprise Micro 5.4 (s390x)
    * grub2-s390x-emu-2.06-150400.11.38.1
  * Basesystem Module 15-SP4 (aarch64 ppc64le s390x x86_64)
    * grub2-2.06-150400.11.38.1
    * grub2-debuginfo-2.06-150400.11.38.1
  * Basesystem Module 15-SP4 (noarch)
    * grub2-snapper-plugin-2.06-150400.11.38.1
    * grub2-powerpc-ieee1275-2.06-150400.11.38.1
    * grub2-x86_64-efi-2.06-150400.11.38.1
    * grub2-i386-pc-2.06-150400.11.38.1
    * grub2-arm64-efi-2.06-150400.11.38.1
    * grub2-systemd-sleep-plugin-2.06-150400.11.38.1
  * Basesystem Module 15-SP4 (aarch64 s390x x86_64)
    * grub2-debugsource-2.06-150400.11.38.1
  * Basesystem Module 15-SP4 (s390x)
    * grub2-s390x-emu-2.06-150400.11.38.1
  * Server Applications Module 15-SP4 (noarch)
    * grub2-x86_64-xen-2.06-150400.11.38.1
  * SUSE Manager Proxy 4.3 Module 4.3 (noarch)
    * grub2-arm64-efi-2.06-150400.11.38.1

## References:

  * https://www.suse.com/security/cve/CVE-2023-4692.html
  * https://www.suse.com/security/cve/CVE-2023-4693.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1201300
  * https://bugzilla.suse.com/show_bug.cgi?id=1215935
  * https://bugzilla.suse.com/show_bug.cgi?id=1215936

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