The Debian php_crypt_revamped.patch patch for PHP 5.3.x, as used in the php5 package before 5.3.3-7+squeeze4 in Debian GNU/Linux squeeze, the php5 package before 5.3.2-1ubuntu4.17 in Ubuntu 10.04 LTS, and the php5 package before 5.3.5-1ubuntu7.10 in Ubuntu 11.04, does not properly handle an empty salt string, which might allow remote attackers to bypass authentication by leveraging an application that relies on the PHP crypt function to choose a salt for password hashing.
Weaknesses in this category are related to the design and implementation of data confidentiality and integrity. Frequently these deal with the use of encoding techniques, encryption libraries, and hashing algorithms. The weaknesses in this category could lead to a degradation of the quality data if they are not addressed.
| Link | Tags |
|---|---|
| http://www.ubuntu.com/usn/USN-1481-1 | vendor advisory |
| http://www.openwall.com/lists/oss-security/2012/05/04/7 | mailing list |
| http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=581170 | |
| http://www.openwall.com/lists/oss-security/2012/05/05/2 | mailing list |