- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 202210-42
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                           https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: Normal
    Title: zlib: Multiple vulnerabilities
     Date: October 31, 2022
     Bugs: #863851, #835958
       ID: 202210-42

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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