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PHP 7.0.x < 7.0.23, 7.1.x < 7.1.9 Use-After-Free Vulnerability - Linux
Information
Severity
Severity
High
Family
Family
Web application abuses
CVSSv2 Base
CVSSv2 Base
7.5
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Solution Type
Solution Type
Vendor Patch
Created
Created
2 years ago
Modified
Modified
2 years ago
Summary
PHP is prone to a use-after-free vulnerability.
Insight
Insight
ext/standard/var_unserializer.re is prone to a heap use after free while unserializing untrusted data, related to improper use of the hash API for key deletion in a situation with an invalid array size. Exploitation of this issue can have an unspecified impact on the integrity of PHP.
Affected Software
Affected Software
PHP versions 7.0.x prior to 7.0.23 and 7.1.x prior to 7.1.9.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Update to version 7.0.23, 7.1.9 or later.