cbrPager: User-assisted execution of arbitrary code

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200806-05 / cbrpager
Release Date	June 16, 2008
Latest Revision	June 16, 2008: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
app-misc/cbrpager	< 0.9.17	>= 0.9.17	All supported architectures

Related bugreports: #223657

Synopsis

Insecure filename usage in cbrPager may allow for the remote execution of arbitrary code.

2. Impact Information

Background

cbrPager is a comic book pager.

Description

Mamoru Tasaka discovered that filenames of the image archives are not properly sanitized before being passed to decompression utilities like unrar and unzip, which use the system() libc library call.

Impact

A remote attacker could entice a user to open an archive with a specially crafted filename, resulting in arbitrary code execution with the privileges of the user running the application.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All cbrPager users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-misc/cbrpager-0.9.17"

4. References

CVE-2008-2575

Page updated June 16, 2008

Summary: This is a Gentoo Linux Security Advisory

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