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CVE Database

CVE-2012-2311

Impact: Critical
Public: 2012-05-03
Bugzilla: 818907: CVE-2012-2311 php: incomplete CVE-2012-1823 fix - incorrect check for =
IAVA: 2013-B-0075

Details

The MITRE CVE dictionary describes this issue as:

sapi/cgi/cgi_main.c in PHP before 5.3.13 and 5.4.x before 5.4.3, when configured as a CGI script (aka php-cgi), does not properly handle query strings that contain a %3D sequence but no = (equals sign) character, which allows remote attackers to execute arbitrary code by placing command-line options in the query string, related to lack of skipping a certain php_getopt for the 'd' case. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-1823.

Find out more about CVE-2012-2311 from the MITRE CVE dictionary and NIST NVD.

Statement

Not vulnerable. Red Hat did not release PHP packages updates addressing CVE-2012-1823 that introduce the CVE-2012-2311 issue. Therefore, this CVE does not affect any Red Hat products.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score: 6.8
Base Metrics: AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector: Network
Access Complexity: Medium
Authentication: None
Confidentiality Impact: Partial
Integrity Impact: Partial
Availability Impact: Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date

External References

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For clarification or corrections please contact the Red Hat Security Response Team.