Bug 2054089 (CVE-2021-45444) - CVE-2021-45444 zsh: Prompt expansion vulnerability
Summary: CVE-2021-45444 zsh: Prompt expansion vulnerability
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-45444
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2054090 2054569 2054570 2056774
Blocks: 2054091
TreeView+ depends on / blocked
 
Reported: 2022-02-14 07:12 UTC by Sandipan Roy
Modified: 2022-05-17 10:56 UTC (History)
6 users (show)

Fixed In Version: zsh 5.8.1
Clone Of:
Environment:
Last Closed: 2022-05-11 16:46:54 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2022:2120 0 None None None 2022-05-10 15:29:37 UTC

Description Sandipan Roy 2022-02-14 07:12:49 UTC 
https://www.zsh.org/mla/announce/msg00133.html
https://bugs.gentoo.org/833252

From the release announcement:
>This is a stable security release with a few bug fixes, including one
>for CVE-2021-45444, a vulnerability in prompt expansion which could be
>exploited through e.g. VCS_Info to execute arbitrary shell commands
>without a user's knowledge. All sites are encouraged to update from
>zsh 5.8. A partial work-around which can be applied within a running
>shell is provided in the source distribution for those who are unable
>to update their shell binaries.
Comment 1 Sandipan Roy 2022-02-14 07:13:14 UTC 
Created zsh tracking bugs for this issue:

Affects: fedora-all [bug 2054090]
Comment 10 errata-xmlrpc 2022-05-10 15:29:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:2120 https://access.redhat.com/errata/RHSA-2022:2120
Comment 11 Product Security DevOps Team 2022-05-11 16:46:51 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-45444
Note You need to log in before you can comment on or make changes to this bug.