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acroread: UUDecode filename buffer overflow

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200408-14 / acroread
Release Date August 15, 2004
Latest Revision May 22, 2006: 03
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
app-text/acroread <= 5.08 >= 5.09 All supported architectures

Related bugreports: #60205

Synopsis

acroread contains two errors in the handling of UUEncoded filenames that may lead to execution of arbitrary code or programs.

2.  Impact Information

Background

acroread is Adobe's Acrobat PDF reader for Linux.

Description

acroread contains two errors in the handling of UUEncoded filenames. First, it fails to check the length of a filename before copying it into a fixed size buffer and, secondly, it fails to check for the backtick shell metacharacter in the filename before executing a command with a shell.

Impact

By enticing a user to open a PDF with a specially crafted filename, an attacker could execute arbitrary code or programs with the permissions of the user running acroread.

3.  Resolution Information

Workaround

There is no known workaround at this time. All users are encouraged to upgrade to the latest available version of acroread.

Resolution

All acroread users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge sync

# emerge -pv ">=app-text/acroread-5.09"
# emerge ">=app-text/acroread-5.09"

4.  References



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Page updated August 15, 2004

Summary: This is a Gentoo Linux Security Advisory

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