Gentoo Linux Security Advisory GLSA 200903-13

                                        http://security.gentoo.org/

Severity: Normal
Title: MPFR: Denial of Service
Date: March 09, 2009
Bugs: #260968
ID: 200903-13

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
[email protected] 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