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Gentoo Linux Security Advisory GLSA 202210-42
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https://security.gentoo.org/
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Severity: Normal
Title: zlib: Multiple vulnerabilities
Date: October 31, 2022
Bugs: #863851, #835958
ID: 202210-42

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Synopsis
========

A buffer overflow in zlib might allow an attacker to cause remote code
execution.

Background
==========

zlib is a widely used free and patent unencumbered data compression
library.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-libs/zlib < 1.2.12-r3 >= 1.2.12-r3

Description
===========

Multiple vulnerabilities have been discovered in zlib. Please review the
CVE identifiers referenced below for details.

Impact
======

Maliciously crafted input handled by zlib may result in remote code
execution.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All zlib users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-libs/zlib-1.2.12-r3"

References
==========

[ 1 ] CVE-2018-25032
https://nvd.nist.gov/vuln/detail/CVE-2018-25032
[ 2 ] CVE-2022-37434
https://nvd.nist.gov/vuln/detail/CVE-2022-37434

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202210-42

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2022 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5