Date: Mon, 24 Jul 2023 14:46:21 +0000 From: bugzilla-noreply@freebsd.org To: ports-bugs@FreeBSD.org Subject: [Bug 272695] sysutils/devcpu-data-amd: A new microcode attack against the AMD Zen uarch has been published Message-ID: <bug-272695-7788@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D272695 Bug ID: 272695 Summary: sysutils/devcpu-data-amd: A new microcode attack against the AMD Zen uarch has been published Product: Ports & Packages Version: Latest Hardware: Any OS: Any Status: New Severity: Affects Many People Priority: --- Component: Individual Port(s) Assignee: sbruno@FreeBSD.org Reporter: crest@rlwinm.de Assignee: sbruno@FreeBSD.org Flags: maintainer-feedback?(sbruno@FreeBSD.org) A new attack on AMD Zen CPUs has just been published at https://lock.cmpxchg8b.com/zenbleed.html. AMD has released a microcode upda= ted closing the exploitable vulnerability, but a workaround via cpuctl is possi= ble (probably with a higher performance penalty). Waiting for mainboard vendors= to release firmware updates including the updated microcode and users to insta= ll it is unrealistic. This port should be the best delivery mechanism availabl= e to FreeBSD users. --=20 You are receiving this mail because: You are the assignee for the bug.=
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