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cbrPager: User-assisted execution of arbitrary code


1.  Gentoo Linux Security Advisory

Version Information

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


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

2.  Impact Information


cbrPager is a comic book pager.


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.


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


There is no known workaround at this time.


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


Page updated June 16, 2008

Summary: This is a Gentoo Linux Security Advisory

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