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Moderate Zsh Update for Red Hat Enterprise Linux 8 (RHSA-2022:2120-01)

red hat
Calendar Grey May 10, 2022
Dist Redhat Esm H88
Ubuntu has issued a significant bash security patch for 20.04 LTS to mitigate command injection flaws and offer enhancements.
An update for zsh is now available for Red Hat Enterprise Linux 8

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

The zsh shell is a command interpreter usable as an interactive login shell and as a shell script command processor. Zsh resembles the ksh shell (the Korn shell), but includes many enhancements. Zsh supports command-line editing, built-in spelling correction, programmable command completion, shell functions (with autoloading), a history mechanism, and more.
Security Fix(es):
* zsh: Prompt expansion vulnerability (CVE-2021-45444)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.6 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat Enterprise Linux security impact zsh update prompt expansion

References

https://access.redhat.com/security/cve/CVE-2021-45444 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/8.6_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 8):
noarch: zsh-html-5.5.1-9.el8.noarch.rpm
Red Hat Enterprise Linux BaseOS (v. 8):
Source: zsh-5.5.1-9.el8.src.rpm
aarch64: zsh-5.5.1-9.el8.aarch64.rpm zsh-debuginfo-5.5.1-9.el8.aarch64.rpm zsh-debugsource-5.5.1-9.el8.aarch64.rpm
ppc64le: zsh-5.5.1-9.el8.ppc64le.rpm zsh-debuginfo-5.5.1-9.el8.ppc64le.rpm zsh-debugsource-5.5.1-9.el8.ppc64le.rpm
s390x: zsh-5.5.1-9.el8.s390x.rpm zsh-debuginfo-5.5.1-9.el8.s390x.rpm zsh-debugsource-5.5.1-9.el8.s390x.rpm
x86_64: zsh-5.5.1-9.el8.x86_64.rpm zsh-debuginfo-5.5.1-9.el8.x86_64.rpm zsh-debugsource-5.5.1-9.el8.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key


Advisory ID: RHSA-2022:2120-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:2120
Issue date: 2022-05-10

Topic

An update for zsh is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat Enterprise Linux security impact zsh update prompt expansion

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - noarch

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

2054089 - CVE-2021-45444 zsh: Prompt expansion vulnerability

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