Several vulnerabilities have been discovered in PHP, a server-side, HTML-embedded scripting language. The Common Vulnerabilities and Exposures project identifies the following problems:
Buffer overflow in the imageloadfont function allows a denial of service or code execution through a crafted font file.
Buffer overflow in the memnstr function allows a denial of service or code execution via a crafted delimiter parameter to the explode function.
Denial of service is possible in the FastCGI module by a remote attacker by making a request with multiple dots before the extension.
For the stable distribution (etch), these problems have been fixed in version 5.2.0-8+etch13.
For the testing (lenny) and unstable distribution (sid), these problems have been fixed in version 5.2.6-4.
We recommend that you upgrade your php5 package.
MD5 checksums of the listed files are available in the original advisory.