o3read: Buffer overflow during file conversion — GLSA 200501-20

A buffer overflow in o3read allows an attacker to execute arbitrary code by way of a specially crafted XML file.

Affected packages

Background

o3read is a standalone converter for OpenOffice.org files. It allows a user to dump the contents tree (o3read) and convert to plain text (o3totxt) or to HTML (o3tohtml) Writer and Calc files.

Description

Wiktor Kopec discovered that the parse_html function in o3read.c copies any number of bytes into a 1024-byte t[] array.

Impact

Using a specially crafted file, possibly delivered by e-mail or over the Web, an attacker may execute arbitrary code with the permissions of the user running o3read.

Workaround

There is no known workaround at this time.

Resolution

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-text/o3read-0.0.4"

References

• CAN-2004-1288
• Wiktor Kopec advisory

Release date
January 11, 2005

Latest revision
January 11, 2005: 01

Severity
normal

Exploitable
remote

Bugzilla entries

• 74478