Gnumeric: User-assisted execution of arbitrary code

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200802-05 / gnumeric
Release Date	February 12, 2008
Latest Revision	February 12, 2008: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
app-office/gnumeric	< 1.8.1	>= 1.8.1	All supported architectures

Related bugreports: #208356

Synopsis

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

2. Impact Information

Background

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

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.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Gnumeric users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-office/gnumeric-1.8.1"

4. References

CVE-2008-0668

Page updated February 12, 2008

Summary: This is a Gentoo Linux Security Advisory

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