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CVSS: 2.1EPSS: 0%CPEs: 6EXPL: 0

The asynchronous I/O facility in 4.4 BSD kernel does not check user credentials when setting the recipient of I/O notification, which allows local users to cause a denial of service by using certain ioctl and fcntl calls to cause the signal to be sent to an arbitrary process ID. • http://www.openbsd.com/advisories/signals.txt http://www.osvdb.org/11062 https://exchange.xforce.ibmcloud.com/vulnerabilities/556 • CWE-255: Credentials Management Errors •