Netflix researchers uncovered several security vulnerabilities, within the TCP implementations on Linux and FreeBSD kernels.
The most severe of the flaws is the SACK Panic vulnerability, which could allow an attacker to remotely induce a kernel panic within recent Linux operating systems, according to a June 17 OpenWall blog post.
A kernel panic is a vulnerability where an operating system cannot easily recover, or in some cases not recover at all potentially forcing a restart of a targeted host, causing a temporary shutdown in services.
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