This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2021-45444 →

DEBIAN-CVE-2021-45444

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...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 zsh

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8.1-1"}]}]

Debian:13 zsh

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8.1-1"}]}]

Debian:14 zsh

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8.1-1"}]}]

References

advisory security-tracker.debian.org