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SUSE 15 Critical Update: Important zsh Command Execution Fix

suse
Calendar Grey March 4, 2022
Dist Suse Esm H88
SUSE Security Patch for zsh addresses severe command execution and permission-related vulnerabilities. Essential update ready for installation!
An update that fixes two vulnerabilities is now available

Summary

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 Security 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 Server for SAP 15: zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2022-732=1 - SUSE Linux Enterprise Server 15-LTSS: zypper in -t patch SUSE-SLE-Product-SLES-15-2022-732=1 - SUSE Linux Enterprise High Performance Computing 15-LTSS:

Topics%20covered

Topics Covered

security advisory software update privilege escalation command execution important SUSE zsh

References

#1163882 #1196435

Cross- CVE-2019-20044 CVE-2021-45444

CVSS scores:

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-2019-20044 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/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

CVE-2021-45444 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Products:

SUSE Linux Enterprise High Performance Computing 15-ESPOS

SUSE Linux Enterprise High Performance Computing 15-LTSS

SUSE Linux Enterprise Server 15-LTSS

SUSE Linux Enterprise Server for SAP 15

https://www.suse.com/security/cve/CVE-2019-20044.html

https://www.suse.com/security/cve/CVE-2021-45444.html

https://bugzilla.suse.com/1163882

https://bugzilla.suse.com/1196435

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:0732-1
Rating: important

Topics%20covered

Topics Covered

security advisory software update privilege escalation command execution important SUSE zsh

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