CVE-2007-2727

Severity

26%

Complexity

49%

Confidentiality

48%

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.

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.

CVSS 2.0 Base Score 2.6. CVSS Attack Vector: network. CVSS Attack Complexity: high. CVSS Vector: (AV:N/AC:H/Au:N/C:P/I:N/A:N).

Overview

Type

PHP

First reported 17 years ago

2007-05-16 22:30:00

Last updated 6 years ago

2018-10-30 16:25:00

Affected Software

PHP PHP 4.0.1

4.0.1

PHP PHP 4.0.2

4.0.2

PHP PHP 4.0.3

4.0.3

PHP PHP 4.0.4

4.0.4

PHP PHP 4.0.5

4.0.5

PHP PHP 4.0.6

4.0.6

PHP PHP 4.0.7

4.0.7

PHP 4.0.7 Release Candidate 1

4.0.7

PHP 4.0.7 Release Candidate 2

4.0.7

PHP 4.0.7 Release Candidate 3

4.0.7

PHP PHP 4.1.0

4.1.0

PHP PHP 4.1.1

4.1.1

PHP PHP 4.1.2

4.1.2

PHP PHP 4.2.0

4.2.0

PHP PHP 4.2.1

4.2.1

PHP PHP 4.2.2

4.2.2

PHP PHP 4.2.3

4.2.3

PHP PHP 4.3.0

4.3.0

PHP PHP 4.3.1

4.3.1

PHP PHP 4.3.2

4.3.2

PHP PHP 4.3.3

4.3.3

PHP PHP 4.3.4

4.3.4

PHP PHP 4.3.5

4.3.5

PHP PHP 4.3.6

4.3.6

PHP PHP 4.3.7

4.3.7

PHP PHP 4.3.8

4.3.8

PHP PHP 4.3.9

4.3.9

PHP PHP 4.3.10

4.3.10

PHP PHP 4.3.11

4.3.11

PHP PHP 4.4.0

4.4.0

PHP PHP 4.4.1

4.4.1

PHP PHP 4.4.2

4.4.2

PHP PHP 4.4.3

4.4.3

PHP PHP 4.4.4

4.4.4

PHP PHP 4.4.5

4.4.5

PHP PHP 4.4.6

4.4.6

PHP PHP 5.0.0

5.0.0

PHP PHP 5.0.0 RC1

5.0.0

PHP PHP 5.0.0 RC2

5.0.0

PHP PHP 5.0.0 RC3

5.0.0

PHP PHP 5.0.1

5.0.1

PHP PHP 5.0.2

5.0.2

PHP PHP 5.0.3

5.0.3

PHP PHP 5.0.4

5.0.4

PHP PHP 5.0.5

5.0.5

PHP PHP 5.1.0

5.1.0

PHP PHP 5.1.1

5.1.1

PHP PHP 5.1.2

5.1.2

PHP PHP 5.1.3

5.1.3

PHP 5.1.4

5.1.4

PHP PHP 5.1.5

5.1.5

PHP PHP 5.1.6

5.1.6

PHP 5.2.0

5.2.0

PHP 5.2.1

5.2.1

PHP 5.2.2

5.2.2

References

http://blog.php-security.org/archives/80-Watching-the-PHP-CVS.html

http://bugs.php.net/bug.php?id=40999

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

36087

26895

http://www.fortheloot.com/public/mcrypt.patch

MDKSA-2007:187

SUSE-SR:2007:015

http://www.php.net/ChangeLog-5.php

23984

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