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CVE Record

CVE-2011-4153: PHP 5.3.8 does not always check the return value of the zend_strndup function, which might allow remote att...

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.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2011-4153 is a PHP 5.3.8 denial-of-service issue. Certain PHP code paths may crash when crafted untrusted string data triggers unchecked memory-allocation failures. Business impact is service interruption, not confirmed data theft or code execution in the provided sources. Exposure is most plausible in legacy environments still running PHP 5.3.8, including vendor-packaged PHP on older platforms. Internet-facing applications processing attacker-controlled string input are the main concern. The bundle does not identify current supported PHP versions as affected. Treat as a legacy resilience risk. Prioritize remediation if PHP 5.3.8 supports public services, customer portals, or operational systems where crashes affect availability. If no PHP 5.3.8 remains, urgency is low. Mitigation focus: Inventory systems and applications running PHP 5.3.8.; Review PHP, HP, SUSE, and platform vendor advisories for fixed packages.; Upgrade or replace unsupported PHP 5.3.8 deployments per vendor guidance..

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1Source links

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Affected products

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n/an/an/aListed
Weakness

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