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FreeBSD Security Advisory (FreeBSD-SA-09:13.pipe.asc)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Created
Created
Modified
Modified
Summary
The remote host is missing an update to the system as announced in the referenced advisory FreeBSD-SA-09:13.pipe.asc
Insight
Insight
Pipes are a form of inter-process communication (IPC) provided by the FreeBSD kernel. kqueue is an event management API that applications can use to monitor pipes and other kernel services. A race condition exists in the pipe close() code relating to kqueues, causing use-after-free for kernel memory, which may lead to an exploitable NULL pointer vulnerability in the kernel, kernel memory corruption, and other unpredictable results.
Solution
Solution
Upgrade your system to the appropriate stable release or security branch dated after the correction date https://secure1.securityspace.com/smysecure/catid.html?in=FreeBSD-SA-09:13.pipe.asc