An integer overflow in the PNG handling of Dillo might result in the remote execution of arbitrary code.
|Package||www-client/dillo on all architectures|
|Affected versions||< 2.1.1|
|Unaffected versions||>= 2.1.1|
Dillo is a graphical web browser known for its speed and small footprint.
Tilei Wang reported an integer overflow in the Png_datainfo_callback() function, possibly leading to a heap-based buffer overflow.
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.
There is no known workaround at this time.
All Dillo users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=www-client/dillo-2.1.1"
August 18, 2009
August 18, 2009: 01