CVE-2012-6113

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-01-19 · updated 2026-06-16
Weakness: CWE-200

Description

The openssl_encrypt function in ext/openssl/openssl.c in PHP 5.3.9 through 5.3.13 does not initialize a certain variable, which allows remote attackers to obtain sensitive information from process memory by providing zero bytes of input data.

Affected products

PHP: 5.3.9, 5.3.10, 5.3.11, 5.3.12, 5.3.13

References

http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=270a406ac94b5fc5cc9ef59fc61e3b4b95648a3e
http://openwall.com/lists/oss-security/2013/01/18/6
http://www.ubuntu.com/usn/USN-1702-1
https://bugs.launchpad.net/ubuntu/+source/php5/+bug/1099793
https://bugs.php.net/bug.php?id=61413
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=270a406ac94b5fc5cc9ef59fc61e3b4b95648a3e
http://openwall.com/lists/oss-security/2013/01/18/6
http://www.ubuntu.com/usn/USN-1702-1
https://bugs.launchpad.net/ubuntu/+source/php5/+bug/1099793
https://bugs.php.net/bug.php?id=61413

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