Security update for zsh

Announcement ID:	SUSE-SU-2022:0735-1
Rating:	important
References:	bsc#1163882 bsc#1196435
Cross-References:	CVE-2019-20044 CVE-2021-45444
CVSS scores:	CVE-2019-20044 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2019-20044 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2021-45444 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVE-2021-45444 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products:	Basesystem Module 15-SP3 SUSE CaaS Platform 4.0 SUSE Enterprise Storage 6 SUSE Enterprise Storage 7 SUSE Linux Enterprise Desktop 15 SP3 SUSE Linux Enterprise High Performance Computing 15 SP1 SUSE Linux Enterprise High Performance Computing 15 SP1 ESPOS 15-SP1 SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS 15-SP1 SUSE Linux Enterprise High Performance Computing 15 SP2 SUSE Linux Enterprise High Performance Computing 15 SP2 ESPOS 15-SP2 SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2 SUSE Linux Enterprise High Performance Computing 15 SP3 SUSE Linux Enterprise Real Time 15 SP2 SUSE Linux Enterprise Real Time 15 SP3 SUSE Linux Enterprise Server 15 SP1 SUSE Linux Enterprise Server 15 SP1 Business Critical Linux 15-SP1 SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1 SUSE Linux Enterprise Server 15 SP2 SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2 SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 SUSE Linux Enterprise Server 15 SP3 SUSE Linux Enterprise Server 15 SP3 Business Critical Linux 15-SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP1 SUSE Linux Enterprise Server for SAP Applications 15 SP2 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Manager Proxy 4.1 SUSE Manager Proxy 4.2 SUSE Manager Retail Branch Server 4.1 SUSE Manager Retail Branch Server 4.2 SUSE Manager Server 4.1 SUSE Manager Server 4.2

An update that solves two vulnerabilities can now be installed.

Description:

This update for zsh fixes the following issues:

• CVE-2021-45444: Fixed a vulnerability where arbitrary shell commands could be executed related to prompt expansion (bsc#1196435).
• CVE-2019-20044: Fixed a vulnerability where shell privileges would not be properly dropped when unsetting the PRIVILEGED option (bsc#1163882).

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:

• Basesystem Module 15-SP3
  zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2022-735=1
• SUSE Linux Enterprise High Performance Computing 15 SP1 ESPOS 15-SP1
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP1-ESPOS-2022-735=1
• SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS 15-SP1
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP1-LTSS-2022-735=1
• SUSE Linux Enterprise High Performance Computing 15 SP2 ESPOS 15-SP2
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP2-ESPOS-2022-735=1
• SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP2-LTSS-2022-735=1
• SUSE Linux Enterprise Real Time 15 SP2
  zypper in -t patch SUSE-SLE-Product-RT-15-SP2-2022-735=1
• SUSE Linux Enterprise Server 15 SP1 Business Critical Linux 15-SP1
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-BCL-2022-735=1
• SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-LTSS-2022-735=1
• SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP2-BCL-2022-735=1
• SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP2-LTSS-2022-735=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP1
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP1-2022-735=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP2
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP2-2022-735=1
• SUSE Manager Proxy 4.1
  zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Proxy-4.1-2022-735=1
• SUSE Manager Retail Branch Server 4.1
  zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.1-2022-735=1
• SUSE Manager Server 4.1
  zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Server-4.1-2022-735=1
• SUSE Enterprise Storage 6
  zypper in -t patch SUSE-Storage-6-2022-735=1
• SUSE Enterprise Storage 7
  zypper in -t patch SUSE-Storage-7-2022-735=1
• SUSE CaaS Platform 4.0
  To install this update, use the SUSE CaaS Platform 'skuba' tool. It will inform you if it detects new updates and let you then trigger updating of the complete cluster in a controlled way.

Package List:

• Basesystem Module 15-SP3 (aarch64 ppc64le s390x x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE Linux Enterprise High Performance Computing 15 SP1 ESPOS 15-SP1 (aarch64 x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS 15-SP1 (aarch64 x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE Linux Enterprise High Performance Computing 15 SP2 ESPOS 15-SP2 (aarch64 x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2 (aarch64 x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE Linux Enterprise Real Time 15 SP2 (x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE Linux Enterprise Server 15 SP1 Business Critical Linux 15-SP1 (x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1 (aarch64 ppc64le s390x x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2 (x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (aarch64 ppc64le s390x x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP1 (ppc64le x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP2 (ppc64le x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE Manager Proxy 4.1 (x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE Manager Retail Branch Server 4.1 (x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE Manager Server 4.1 (ppc64le s390x x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE Enterprise Storage 6 (aarch64 x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE Enterprise Storage 7 (aarch64 x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1
• SUSE CaaS Platform 4.0 (x86_64)
  • zsh-5.6-7.5.1
  • zsh-debuginfo-5.6-7.5.1
  • zsh-debugsource-5.6-7.5.1

References:

• https://www.suse.com/security/cve/CVE-2019-20044.html
• https://www.suse.com/security/cve/CVE-2021-45444.html
• https://bugzilla.suse.com/show_bug.cgi?id=1163882
• https://bugzilla.suse.com/show_bug.cgi?id=1196435