The zend_string_extend function in Zend/zend_string.h in PHP through 7.1.5 does not prevent changes to string objects that result in a negative length, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact by leveraging a script's use of .= with a long string.

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SUSE CVE-2017-8923

The zendstringextend function in Zend/zendstring.h in PHP through 7.1.5 does not prevent changes to string objects that result in a negative length, which allows remote attackers to cause a denial of service application crash or possibly have unspecified other impact by leveraging a script's use ...

PHP Denial of Service Vulnerability (CNVD-2017-06940)

PHP PHP: Hypertext Preprocessor is an open source general-purpose computer scripting language maintained by the PHP Group and the open source community. The language supports multiple syntaxes, multiple databases and operating systems, and support for C, C++ for program extensions and so on. A...

UBUNTU-CVE-2017-8923

The zendstringextend function in Zend/zendstring.h in PHP through 7.1.5 does not prevent changes to string objects that result in a negative length, which allows remote attackers to cause a denial of service application crash or possibly have unspecified other impact by leveraging a script's use ...

PT-2017-2598

Name of the Vulnerable Software and Affected Versions PHP versions through 7.1.5 Description The issue is related to the zend string extend function in PHP, which does not prevent changes to string objects that result in a negative length. This allows remote attackers to cause a denial of service...