Debian: DSA-2399-1 Critical: PHP Several Remote Threats Resolved

CVE-2011-1938

The UNIX socket handling allowed attackers to trigger a buffer overflow
via a long path name.

CVE-2011-2483

The crypt_blowfish function did not properly handle 8-bit characters,
which made it easier for attackers to determine a cleartext password
by using knowledge of a password hash.

CVE-2011-4566

When used on 32 bit platforms, the exif extension could be used to
trigger an integer overflow in the exif_process_IFD_TAG function
when processing a JPEG file.

CVE-2011-4885

It was possible to trigger hash collisions predictably when parsing
form parameters, which allows remote attackers to cause a denial of
service by sending many crafted parameters.

CVE-2012-0057

When applying a crafted XSLT transform, an attacker could write files
to arbitrary places in the filesystem.

NOTE: the fix for CVE-2011-2483 required changing the behaviour of this
function: it is now incompatible with some old (wrongly) generated hashes
for passwords containing 8-bit characters. See the pa...