31 vulnerabilities classified as CWE-667 (加锁机制不恰当). AI Chinese analysis included.
CWE-667 represents a synchronization weakness where software fails to properly acquire or release locks on shared resources, resulting in unpredictable state changes and potential data corruption. This flaw typically arises when concurrent threads or processes access critical sections without adhering to consistent locking protocols, allowing race conditions to occur. Attackers exploit these vulnerabilities by triggering simultaneous operations that bypass expected serialization, potentially leading to denial of service, privilege escalation, or integrity violations as the system enters an inconsistent state. Developers mitigate this risk by implementing rigorous locking strategies, ensuring that all code paths acquire and release locks symmetrically. Utilizing language-specific synchronization primitives, such as mutexes or semaphores, and conducting thorough concurrency testing helps guarantee that shared resources remain protected against interference, thereby maintaining application stability and security during high-concurrency scenarios.
private long someLongValue; public long getLongValue() { return someLongValue; } public void setLongValue(long l) { someLongValue = l; }function writeToLog($message){ $logfile = fopen("logFile.log", "a"); //attempt to get logfile lock if (flock($logfile, LOCK_EX)) { fwrite($logfile,$message); // unlock logfile flock($logfile, LOCK_UN); } else { print "Could not obtain lock on logFile.log, message not recorded\n"; } } fclose($logFile);Vulnerabilities classified as CWE-667 (加锁机制不恰当) represent 31 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.