Race condition in pcsd in PCS 0.9.139 and earlier uses a global variable to validate usernames, which allows remote authenticated users to gain privileges by sending a command that is checked for security after another user is authenticated.
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
Link | Tags |
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https://bugzilla.redhat.com/show_bug.cgi?id=1252805 | |
http://rhn.redhat.com/errata/RHSA-2015-1700.html | vendor advisory |