A zsh security update has been released for openSUSE Leap 15.3 and 15.4.

openSUSE-SU-2022:0735-1: important: Security update for zsh

openSUSE Security Update: Security update for zsh
______________________________________________________________________________

Announcement ID: openSUSE-SU-2022:0735-1
Rating: important
References: #1163882 #1196435
Cross-References: 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:
openSUSE Leap 15.3
openSUSE Leap 15.4
______________________________________________________________________________

An update that fixes two vulnerabilities is now available.

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 openSUSE 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:

- openSUSE Leap 15.4:

zypper in -t patch openSUSE-SLE-15.4-2022-735=1

- openSUSE Leap 15.3:

zypper in -t patch openSUSE-SLE-15.3-2022-735=1


Package List:

- openSUSE Leap 15.4 (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
zsh-htmldoc-5.6-7.5.1

- openSUSE Leap 15.3 (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
zsh-htmldoc-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/1163882
  https://bugzilla.suse.com/1196435