CVE-2007-2727
LOW severity · CVSS 2.6
2.6CVSS LOW
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges required—
User interaction—
Confidentiality impact—
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)2%
AV:N/AC:H/Au:N/C:P/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: http://www.fortheloot.com/public/mcrypt.patch ↗
Additional information
- NVD record
- http://www.fortheloot.com/public/mcrypt.patchPatch
- http://blog.php-security.org/archives/80-Watching-the-PHP-CVS.htmlAdvisory
- http://bugs.php.net/bug.php?id=40999Advisory
- http://cvs.php.net/viewvc.cgi/php-src/ext/mcrypt/mcrypt.c?r1=1.91.2.3.2.9&r2=1.91.2.3.2.10Advisory
- http://osvdb.org/36087
- http://secunia.com/advisories/26895
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:187
- http://www.novell.com/linux/security/advisories/2007_15_sr.htmlAdvisory