Vobcopy: Insecure temporary file creation

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200803-11 / vobcopy
Release Date	March 05, 2008
Latest Revision	March 05, 2008: 01
Impact	normal
Exploitable	local

Package	Vulnerable versions	Unaffected versions	Architecture(s)
media-video/vobcopy	< 1.1.0	>= 1.1.0	All supported architectures

Related bugreports: #197578

Synopsis

Vobcopy uses temporary files in an insecure manner, allowing for a symlink attack.

2. Impact Information

Background

Vobcopy is a tool for decrypting and copying DVD .vob files to a hard disk.

Description

Joey Hess reported that vobcopy appends data to the file "/tmp/vobcopy.bla" in an insecure manner.

Impact

A local attacker could exploit this vulnerability to conduct symlink attacks and append data to arbitrary files with the privileges of the user running Vobcopy.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Vobcopy users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-video/vobcopy-1.1.0"

4. References

CVE-2007-5718

Updated March 05, 2008

Summary: This is a Gentoo Linux Security Advisory

Security Team
Contact Address

Donate to support our development efforts.