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openSUSE Leap 15.3 & 15.4: 2022:0735-1 Important Zsh Risks

opensuse
Calendar Grey March 4, 2022
Scroller Opensuse
Urgent patch release for zsh in openSUSE addressing vulnerability in command execution and user privilege escalation.
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).

Topics%20covered

Topics Covered

security advisory command execution patch important privilege issue openSUSE zsh

Patch

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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2022:0735-1
Rating: important
Affected Products: openSUSE Leap 15.3 openSUSE Leap 15.4 .

Topics%20covered

Topics Covered

security advisory command execution patch important privilege issue openSUSE zsh

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