FreeBSD : FreeBSD -- Kernel memory disclosure in sctp(4) (dd48d9b9-5e7e-11e6-a6c3-14dae9d210b8)
High Nessus Plugin ID 92833
SynopsisThe remote FreeBSD host is missing one or more security-related updates.
DescriptionProblem Description :
When initializing the SCTP state cookie being sent in INIT-ACK chunks, a buffer allocated from the kernel stack is not completely initialized.
Fragments of kernel memory may be included in SCTP packets and transmitted over the network. For each SCTP session, there are two separate instances in which a 4-byte fragment may be transmitted.
This memory might contain sensitive information, such as portions of the file cache or terminal buffers. This information might be directly useful, or it might be leveraged to obtain elevated privileges in some way. For example, a terminal buffer might include a user-entered password.
SolutionUpdate the affected packages.