PHP 4.x and 5.x before 5.2.1, when running on multi-threaded systems,
does not ensure thread safety for libc crypt function calls using
protection schemes such as a mutex, which creates race conditions that
allow remote attackers to overwrite internal program memory and gain
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
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discovered, shared with the affected vendor, publicly
disclosed, or updated in CVE.
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list, which standardizes names for security