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Gentoo Linux Security Advisory                           GLSA 202011-15
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: libmaxminddb: Denial of service
     Date: November 14, 2020
     Bugs: #753275
       ID: 202011-15

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Synopsis
=======
A vulnerability in libmaxminddb could lead to a Denial of Service
condition.

Background
=========
The libmaxminddb library provides a C library for reading MaxMind DB
files, including the GeoIP2 databases from MaxMind.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-libs/libmaxminddb        < 1.4.3                    >= 1.4.3 

Description
==========
libmaxminddb used uninitialised memory when reading from a corrupt
database file.

Impact
=====
A remote attacker could entice a user to use a specially crafted
database with libmaxminddb, possibly resulting in a Denial of Service
condition.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All libmaxminddb users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-libs/libmaxminddb-1.4.3"

References
=========
[ 1 ] CVE-2020-28241
      https://nvd.nist.gov/vuln/detail/CVE-2020-28241

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

 https://security.gentoo.org/glsa/202011-15

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 2020 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/