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PHP <= 7.1.5 Multiple DoS Vulnerabilities
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
PHP is prone to multiple denial of service (DoS) vulnerabilities.
Insight
Insight
The following flaws exist: - CVE-2017-8923: The zend_string_extend function in Zend/zend_string.h 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. - CVE-2017-9119: The i_zval_ptr_dtor function in Zend/zend_variables.h allows attackers to cause a denial of service (memory consumption and application crash) or possibly have unspecified other impact by triggering crafted operations on array data structures.
Affected Software
Affected Software
PHP versions through 7.1.5.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
No known solution was made available for at least one year since the disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one.