Multiple security vulnerabilities have been identified in the mozilla-firefox web browser. These vulnerabilities could allow an attacker to execute code on the victim's machine via specially crafted network resources.
Heap overrun in XBM image processing
Denial of service (crash) and possible execution of arbitrary code via Unicode sequences with "zero-width non-joiner" characters.
XMLHttpRequest header spoofing
Object spoofing using XBL <implements>
JavaScript integer overflow
Privilege escalation using about: scheme
Chrome window spoofing allowing windows to be created without UI components such as a URL bar or status bar that could be used to carry out phishing attacks
For the stable distribution (sarge), these problems have been fixed in version 1.0.4-2sarge5.
For the unstable distribution (sid), these problems have been fixed in version 1.0.7-1.
We recommend that you upgrade your mozilla-firefox package.
MD5 checksums of the listed files are available in the original advisory.