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Category:   Application (Generic)  >   UUDeview Vendors:   Pilhofer, Frank
(Gentoo Issues Fix) UUDeview MIME Buffer Overflow May Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1009572
SecurityTracker URL:  http://securitytracker.com/id/1009572
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Mar 29 2004
Impact:   Execution of arbitrary code via local system, Execution of arbitrary code via network, User access via local system, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 0.5.19 and prior versions
Description:   A buffer overflow vulnerability was reported in the processing of MIME files. A remote user may be able to cause arbitrary code to be executed on a target user's system.

It is reported that a remote user can create a malicious MIME file (.mim, .uue, .uu, .b64, .bhx, .hqx, and .xxe extensions) that, when processed by a target user, will cause UUDeview to crash or execute arbitrary code. The code will run with the privileges of the target user or application.

This issue was originally reported by iDEFENSE in their advisory regarding WinZip:

http://www.idefense.com/application/poi/display?id=76&type=vulnerabilities

Impact:   A remote user can cause arbitrary code to be executed on a target user's computer when the target user processes a malicious MIME file. The specific impact depends on how UUDeview is implemented on the target system.
Solution:   Gentoo has released a fix and indicates that all users should upgrade to UUDeview 0.5.20:

~ # emerge sync
~ # emerge -pv ">=app-text/uudeview-0.5.20"
~ # emerge ">=app-text/uudeview-0.5.20"

Vendor URL:  www.fpx.de/fp/Software/UUDeview/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Gentoo)

Message History:   This archive entry is a follow-up to the message listed below.
Mar 2 2004 UUDeview MIME Buffer Overflow May Let Remote Users Execute Arbitrary Code



 Source Message Contents

Subject:  [gentoo-announce] [ GLSA 200403-05 ] Linux kernel do_mremap local privilege escalation


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Gentoo Linux Security Advisory                           GLSA 200403-05
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~                                            http://security.gentoo.org
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~  Severity: Normal
~     Title: UUDeview MIME Buffer Overflow
~      Date: March 26, 2004
~      Bugs: #44859
~        ID: 200403-05

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Synopsis
========

A specially-crafted MIME file (.mim, .uue, .uu, .b64, .bhx, .hqx, and
.xxe extensions) may cause UUDeview to crash or execute arbitrary code.

Background
==========

UUDeview is a program which is used to transmit binary files over the
Internet in a text-only format. It is commonly used for email and Usenet
attachments. It supports multiple encoding formats, including Base64,
BinHex and UUEncoding.

Description
===========

By decoding a MIME archive with excessively long strings for various
parameters, it is possible to crash UUDeview, or cause it to execute
arbitrary code.

This vulnerability was originally reported by iDEFENSE as part of a
WinZip advisory [ Reference: 1 ].

Impact
======

An attacker could create a specially-crafted MIME file and send it via
email. When recipient decodes the file, UUDeview may execute arbitrary
code which is embedded in the MIME file, thus granting the attacker
access to the recipient's account.

Workaround
==========

All users should upgrade to UUDeview 0.5.20:

~    # emerge sync
~    # emerge -pv ">=app-text/uudeview-0.5.20"
~    # emerge ">=app-text/uudeview-0.5.20"

References
==========

~  [ 1 ] http://www.idefense.com/application/poi/display?id=76
~  [ 2 ] http://www.securityfocus.com/bid/9758

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
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

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