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.
Weaknesses in this category are related to the management of credentials.
Link | Tags |
---|---|
http://www.openbsd.com/advisories/signals.txt | vendor advisory |
http://www.osvdb.org/11062 | vdb entry |
https://exchange.xforce.ibmcloud.com/vulnerabilities/556 | vdb entry |