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Gentoo Linux Security Advisory 200903-13

Gentoo Linux Security Advisory 200903-13
Posted Mar 9, 2009
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory GLSA 200903-13 - Multiple buffer overflows in MPFR might lead to a Denial of Service. Multiple buffer overflows have been reported in the mpfr_snprintf() and mpfr_vsnprintf() functions. Versions less than 2.4.1 are affected.

tags | advisory, denial of service, overflow
systems | linux, gentoo
advisories | CVE-2009-0757
SHA-256 | 00630dfb4d8532a9d36cd433bd5c10f019460632da2383b49fa591e1173a8be1

Gentoo Linux Security Advisory 200903-13

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Gentoo Linux Security Advisory GLSA 200903-13
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http://security.gentoo.org/
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Severity: Normal
Title: MPFR: Denial of Service
Date: March 09, 2009
Bugs: #260968
ID: 200903-13

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Synopsis
========

Multiple buffer overflows in MPFR might lead to a Denial of Service.

Background
==========

MPFR is a library for multiple-precision floating-point computations
with exact rounding.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-libs/mpfr < 2.4.1 >= 2.4.1

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

Multiple buffer overflows have been reported in the mpfr_snprintf() and
mpfr_vsnprintf() functions.

Impact
======

A remote user could exploit the vulnerability to cause a Denial of
Service in an application using MPFR via unknown vectors.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All MPRF users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/mpfr-2.4.1"

References
==========

[ 1 ] CVE-2009-0757
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0757

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

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

http://security.gentoo.org/glsa/glsa-200903-13.xml

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
http://bugs.gentoo.org.

License
=======

Copyright 2009 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.

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