Information disclosure in PHP



Published: 2013-01-19 | Updated: 2020-08-11
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2012-6113
CWE-ID CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
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PHP
Universal components / Libraries / Scripting languages

Vendor PHP Group

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU43164

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2012-6113

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

PHP: 5.3.9 - 5.3.13

External links

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


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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