browser/renderer_host/database_dispatcher_host.cc in Google Chrome before 5.0.375.70 on Linux does not properly handle ViewHostMsg_DatabaseOpenFile messages in chroot-based sandboxing, which allows remote attackers to bypass intended sandbox restrictions via vectors involving fchdir and chdir calls.
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.