DEBIAN-CVE-2021-45444

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Source
https://security-tracker.debian.org/tracker/CVE-2021-45444
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-45444.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2021-45444
Upstream
Published
2022-02-14T12:15:15Z
Modified
2025-09-30T05:16:31.589781Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

In zsh before 5.8.1, an attacker can achieve code execution if they control a command output inside the prompt, as demonstrated by a %F argument. This occurs because of recursive PROMPT_SUBST expansion.

References

Affected packages

Debian:11 / zsh

Package

Name
zsh
Purl
pkg:deb/debian/zsh?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.8-6+deb11u1

Affected versions

5.*

5.8-6

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / zsh

Package

Name
zsh
Purl
pkg:deb/debian/zsh?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.8.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / zsh

Package

Name
zsh
Purl
pkg:deb/debian/zsh?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.8.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / zsh

Package

Name
zsh
Purl
pkg:deb/debian/zsh?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.8.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}