CVE-2007-2727

Publication date 16 May 2007

Last updated 24 July 2024

Description

The mcrypt_create_iv function in ext/mcrypt/mcrypt.c in PHP before 4.4.7, 5.2.1, and possibly 5.0.x and other PHP 5 versions, calls php_rand_r with an uninitialized seed variable and therefore always generates the same initialization vector (IV), which might allow context-dependent attackers to decrypt certain data more easily because of the guessable encryption keys.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
php-mcrypt	9.10 karmic	Not affected
	9.04 jaunty	Not affected
	8.10 intrepid	Not affected
	8.04 LTS hardy	Not affected
	7.10 gutsy	Not affected
	7.04 feisty	Ignored end of life, was needed
	6.10 edgy	Ignored end of life, was needed
	6.06 LTS dapper	Ignored end of life

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
php-mcrypt	Other: http://www.fortheloot.com/public/mcrypt.patch Other: http://cvs.php.net/viewvc.cgi/php-src/ext/mcrypt/mcrypt.c?r1=1.91.2.3.2.9&r2=1.91.2.3.2.10

References

Other references

https://www.cve.org/CVERecord?id=CVE-2007-2727