Description
a buffer overflow, was
discovered in PHP's gd library. A specially-crafted GD image file could
cause the PHP interpreter to crash or, possibly, execute arbitrary code
when opened. (CVE-2009-3546)
It was discovered that PHP did not limit the maximum number of files that
can be uploaded in one request. A remote attacker could use this flaw to
instigate a denial of service by causing the PHP interpreter to use lots of
system resources dealing with requests containing large amounts of files to
be uploaded. This vulnerability depends on file uploads being enabled
(which it is, in the default PHP configuration). (CVE-2009-4017)
It was discovered that PHP was affected by the previously published "null
prefix attack", caused by incorrect handling of NUL characters in X.509
certificates. If an attacker is able to get a carefully-crafted certificate
signed by a trusted Certificate Authority, the attacker could use the
certificate during a man-in-the-middle attack and potentially confuse PHP
into accepting it by mistake. (CVE-2009-3291)
It was discovered that PHP's htmlspecialchars() function did not properly
recognize partial multi-byte sequences for some multi-byte encodings,
sending them to output without them being escaped. An attacker could use
this flaw to perform a cross-site scripting attack. (CVE-2009-4142)