Kernel: FPU state information leakage via lazy FPU restore

A Floating Point Unit FPU state information leakage flaw was found in the way the Linux kernel saved and restored the FPU state during task switch. Linux kernels that follow the "Lazy FPU Restore" scheme are vulnerable to the FPU state information leakage issue. An unprivileged local attacker cou...

July 10, 2018—KB4338820 (Security-only update)

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July 10, 2018—KB4338818 (Monthly Rollup)

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July 10, 2018—KB4338830 (Monthly Rollup)

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July 10, 2018—KB4338823 (Security-only update)

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FreeBSD : FreeBSD -- Lazy FPU State Restore Information Disclosure (4e07d94f-75a5-11e8-85d1-a4badb2f4699)

A subset of Intel processors can allow a local thread to infer data from another thread through a speculative execution side channel when Lazy FPU state restore is used. Impact : Any local thread can potentially read FPU state information from other threads running on the host. This could include...

Command injection

System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel...

CVE-2018-3665

System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel...

CVE-2018-3665

System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel...

ALPINE-CVE-2018-3665

System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel...

CVE-2018-3665

System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel...

CVE-2018-3665

CVE-2018-3665 affects systems using Intel Core-based CPUs with Lazy FP state restore enabled. A local attacker could exploit speculative execution side channels to read FP/SIMD state from other processes or the kernel. Public details in connected docs show Linux kernel mitigations (disable Lazy F...

FreeBSD-SA-18:07.lazyfpu

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-18:07.lazyfpu Security Advisory The FreeBSD Project Topic: Lazy FPU State Restore Information Disclosure Category: core Module: kernel Announced: 2018-06-21...

Debian DSA-4232-1 : xen - security update

This update provides mitigations for the 'lazy FPU' vulnerability affecting a range of Intel CPUs, which could result in leaking CPU register states belonging to another vCPU previously scheduled on the same CPU. For additional information please refer to...

[SECURITY] [DSA 4232-1] xen security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4232-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff June 20, 2018 https://www.debian.org/security/faq -...

Kernel: FPU state information leakage via lazy FPU restore

A Floating Point Unit FPU state information leakage flaw was found in the way the Linux kernel saved and restored the FPU state during task switch. Linux kernels that follow the "Lazy FPU Restore" scheme are vulnerable to the FPU state information leakage issue. An unprivileged local attacker cou...

Debian: Security Advisory (DSA-4232-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4134)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2018-4134 advisory. - x86/fpu: Make eager FPU default Mihai Carabas Orabug: 28156176 CVE-2018-3665 - KVM: Fix stack-out-of-bounds read in writemmio Wanpeng Li Orabug:...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4144)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2018-4144 advisory. 4.1.12-124.16.4 - x86/fpu: Make eager FPU default Mihai Carabas Orabug: 28135099 CVE-2018-3665 Tenable has extracted the preceding description block directl...

Kernel: FPU state information leakage via lazy FPU restore

A Floating Point Unit FPU state information leakage flaw was found in the way the Linux kernel saved and restored the FPU state during task switch. Linux kernels that follow the "Lazy FPU Restore" scheme are vulnerable to the FPU state information leakage issue. An unprivileged local attacker cou...