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Blog posts tagged
"sack panic"

Canonical
5 July 2019

Ubuntu updates for TCP SACK Panic vulnerabilities

Cloud and server Article

Issues have been identified in the way the Linux kernel’s TCP implementation processes Selective Acknowledgement (SACK) options and handles low Maximum Segment Size (MSS) values. These TCP SACK Panic vulnerabilities could expose servers to a denial of service attack, so it is crucial to have systems patched. Updated versions of the Linux ...