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UnRTF: Buffer overflow

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200501-15 / app-text/unrtf
Release Date January 10, 2005
Latest Revision January 10, 2005: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
app-text/unrtf < 0.19.3-r1 >= 0.19.3-r1 All supported architectures

Related bugreports: #74480

Synopsis

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

2.  Impact Information

Background

UnRTF is a utility to convert files in the Rich Text Format into other formats.

Description

An unchecked strcat() in unrtf may overflow the bounds of a static buffer.

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 UnRTF.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All unrtf users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-text/unrtf-0.19.3-r1"

4.  References



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Page updated January 10, 2005

Summary: This is a Gentoo Linux Security Advisory

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