[IT-SecNots] [SECURITY] [DSA 5078-1] zsh security update

[Sebastien Delafond <seb AT debian.org>]

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Debian Security Advisory DSA-5078-1                   security AT debian.org
https://www.debian.org/security/                       Sebastien Delafond
February 16, 2022                     https://www.debian.org/security/faq
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Package        : zsh
CVE ID         : CVE-2021-45444

It was discovered that zsh, a powerful shell and scripting language,
did not prevent recursive prompt expansion. This would allow an
attacker to execute arbitrary commands into a user's shell, for
instance by tricking a vcs_info user into checking out a git branch
with a specially crafted name.

For the oldstable distribution (buster), this problem has been fixed
in version 5.7.1-1+deb10u1.

For the stable distribution (bullseye), this problem has been fixed in
version 5.8-6+deb11u1.

We recommend that you upgrade your zsh packages.

For the detailed security status of zsh please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/zsh

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce AT lists.debian.org
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