CVE-2011-4153 Details
PHP 5.3.8 does not always check the return value of the zend_strndup function, which might allow remote attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted input to an application that performs strndup operations on untrusted string data, as demonstrated by the define function in zend_builtin_functions.c, and unspecified functions in ext/soap/php_sdl.c, ext/standard/syslog.c, ext/standard/browscap.c, ext/oci8/oci8.c, ext/com_dotnet/com_typeinfo.c, and main/php_open_temporary_file.c.
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Exploit prediction scoring system (EPSS) score for CVE-2011-4153
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
11.77 Probability of exploitation activity being observed over the next 30 days (96th percentile)
CVSS score for CVE-2011-4153
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
5 Medium
Products affected by CVE-2011-4153

CVE-2011-4153 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 1,211 16.44%
CH 1,143 15.52%
JP 1,131 15.36%
CN 541 7.35%
RU 301 4.09%
FR 273 3.71%
KR 246 3.34%
DE 211 2.87%
HK 194 2.63%
MY 174 2.36%

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CVE-2011-4153 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 3,599 65.59%
Telecommunications 1,531 27.90%
Education 104 1.90%
Utilities 95 1.73%
Business Services 41 0.75%
Media/Entertainment 34 0.62%
Government/Politics 22 0.40%
Retail 17 0.31%
Engineering 11 0.20%
Finance 8 0.15%

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