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Gentoo Linux Security Advisory                           GLSA 202105-04
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: Boost: Buffer overflow
      Date: May 26, 2021
      Bugs: #620468
        ID: 202105-04

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Synopsis
========

A buffer overflow in Boost might allow remote attacker(s) to execute
arbitrary code.

Background
==========

Boost is a set of C++ libraries, including the Boost.Regex library to
process regular expressions.

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

     -------------------------------------------------------------------
      Package              /     Vulnerable     /            Unaffected
     -------------------------------------------------------------------
   1  dev-libs/boost             < 1.74.0-r2              >= 1.74.0-r2

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

It was discovered that Boost incorrectly sanitized 'next_size' and
'max_size' parameter in ordered_malloc() function when allocating
memory.

Impact
======

A remote attacker could provide a specially crafted
application-specific file (requiring runtime memory allocation to be
processed correctly), that, when opened with an application using Boost
C++ source libraries, possibly resulting in execution of arbitrary code
with the privileges of the process or a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Boost users should upgrade to the latest version:

   # emerge --sync
   # emerge --ask --oneshot --verbose ">=dev-libs/boost-1.74.0-r2"

References
==========

[ 1 ] CVE-2012-2677
       https://nvd.nist.gov/vuln/detail/CVE-2012-2677

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

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

  https://security.gentoo.org/glsa/202105-04

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
[email protected] or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2021 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