[Full-disclosure] [ GLSA 200802-05 ] Gnumeric: User-assisted execution of arbitrary code

2008-02-1300:00:00

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Gentoo Linux Security Advisory GLSA 200802-05

                                        http://security.gentoo.org/

Severity: Normal
Title: Gnumeric: User-assisted execution of arbitrary code
Date: February 12, 2008
Bugs: #208356
ID: 200802-05

Synopsis

Several integer overflow vulnerabilities have been reported in
Gnumeric, possibly resulting in user-assisted execution of arbitrary
code.

Background

The Gnumeric spreadsheet is a versatile application developed as part
of the GNOME Office project.

Affected packages

-------------------------------------------------------------------
 Package              /  Vulnerable  /                  Unaffected
-------------------------------------------------------------------

1 app-office/gnumeric < 1.8.1 >= 1.8.1

Description

Multiple integer overflow and signedness errors have been reported in
the excel_read_HLINK() function in file plugins/excel/ms-excel-read.c
when processing XLS HLINK opcodes.

Impact

A remote attacker could entice a user to open a specially crafted XLS
file, possibly resulting in the remote execution of arbitrary code with
the privileges of the user running the application.

Workaround

There is no known workaround at this time.

Resolution

All Gnumeric users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=app-office/gnumeric-1.8.1&quot;

References

[ 1 ] CVE-2008-0668
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0668

Availability

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

http://security.gentoo.org/glsa/glsa-200802-05.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.