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Gentoo Linux Security Advisory                           GLSA 202003-15
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: ICU: Integer overflow
     Date: March 15, 2020
     Bugs: #710758
       ID: 202003-15

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Synopsis
========

An integer overflow flaw in ICU could possibly allow for the execution
of arbitrary code.

Background
==========

ICU is a mature, widely used set of C/C++ and Java libraries providing
Unicode and Globalization support for software applications.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-libs/icu                < 65.1-r1                 >= 65.1-r1

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

It was discovered that ICU's UnicodeString::doAppend() function is
vulnerable to an integer overflow. Please review the CVE identifiers
referenced below for more details.

Impact
======

A remote attacker could entice a user to process a specially crafted
string in an application linked against ICU, 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 ICU users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-libs/icu-65.1-r1"

References
==========

[ 1 ] CVE-2020-10531
      https://nvd.nist.gov/vuln/detail/CVE-2020-10531

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

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

 https://security.gentoo.org/glsa/202003-15

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


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