GLSA 200908-10: Dillo: User-assisted execution of arbitrary code

Severity:normal
Title:Dillo: User-assisted execution of arbitrary code
Date:08/18/2009
Bugs: #276432
ID:200908-10

Synopsis

An integer overflow in the PNG handling of Dillo might result in the remote execution of arbitrary code.

Background

Dillo is a graphical web browser known for its speed and small footprint.

Affected packages

Package Vulnerable Unaffected Architecture(s)
www-client/dillo < 2.1.1 >= 2.1.1 All supported architectures

Description

Tilei Wang reported an integer overflow in the Png_datainfo_callback() function, possibly leading to a heap-based buffer overflow.

Impact

A remote attacker could entice a user to open an HTML document containing a specially crafted, large PNG image, possibly resulting in the execution of arbitrary code with the privileges of the user running the application.

Workaround

There is no known workaround at this time.

Resolution

All Dillo users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-client/dillo-2.1.1"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200908-10.xml

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 https://bugs.gentoo.org.

License

Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.

Thank you!