Cache-load gadgets exploitable with L1TF

ISSUE DESCRIPTION Previously reported vulnerabilities CVE-2017-5753 / XSA-254 Spectre V1 and CVE-2018-3646 / XSA-273 L1TF can, when combined, be leveraged to more easily gather leaked information. A Spectre v1 gadget is a speculation sequence which starts with a conditional branch, contains a...

Information Disclosure

Systems with microprocessors utilizing speculative execution and address translations are vulnerable to information disclosure. An L1TF issue allows an unprivileged attacker to read privileged memory of the kernel or other processes by conducting targeted cache side-channel attacks...

Fix for XSA-240 conflicts with shadow paging

ISSUE DESCRIPTION The fix for XSA-240 introduced a new field into the control structure associated with each page of RAM. This field was added to a union, another member of which is used when Xen uses shadow paging for the guest. During migration, or with the L1TF XSA-273 mitigation for PV guests...

Updated kernel-tmb packages fix security vulnerabilities

This kernel-tmb update is based on the upstream 4.14.78 and adds additional fixes for the L1TF security issues. It also fixes at least the following security issues: Linux kernel from versions 3.9 and up, is vulnerable to a denial of service attack with low rates of specially modified packets...

Updated kernel-linus packages fix security vulnerabilities

This kernel-linus update is based on the upstream 4.14.78 and adds additional fixes for the L1TF security issues. It also fixes at least the following security issues: Linux kernel from versions 3.9 and up, is vulnerable to a denial of service attack with low rates of specially modified packets...

EulerOS Virtualization 2.5.1 : kernel (EulerOS-SA-2018-1323)

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - Modern operating systems implement virtualization of physical memory to efficiently use available system resources and provide...

EulerOS Virtualization 2.5.0 : kernel (EulerOS-SA-2018-1345)

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - Modern operating systems implement virtualization of physical memory to efficiently use available system resources and provide...

EulerOS Virtualization 2.5.0 : kvm (EulerOS-SA-2018-1350)

According to the version of the kvm package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerability : - Modern operating systems implement virtualization of physical memory to efficiently use available system resources and provide...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 6.7 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 6.5 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 6.6 Advanced Update Support and Red Hat Enterprise Linux 6.6 Telco Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base...

New Ninth-Gen Intel CPUs Shield Against Some Spectre, Meltdown Variants

Intel’s new ninth-generation CPUs come packed with hardware-based protections against two variants of the infamous Meltdown and Spectre speculative execution attacks. The ninth-generation desktop Core processors are dubbed Coffee Lake, and became available for preorder on Tuesday. they’re built t...

kernel security update

kernel 2.6.18-419.0.0.0.12 - x86 mm/dumppagetables: Add a checkl1tf debugfs file Chris von Recklinghausen 1593378 CVE-2018-3620 - x86 cpu: Make flushl1d visible in /proc/cpuinfo Chris von Recklinghausen 1593378 - x86 cpufeatures: Add detection of L1D cache flush support. Chris von Recklinghausen...

Updated kernel packages fix security vulnerabilities

This kernel update is based on the upstream 4.14.70 and adds additional fixes for the L1TF security issues. It also fixes at least the following security issues: Linux kernel from versions 3.9 and up, is vulnerable to a denial of service attack with low rates of specially modified packets targeti...

MGASA-2018-0373 Updated kernel packages fix security vulnerabilities

This kernel update is based on the upstream 4.14.69 and adds additional fixes for the L1TF and Spectre security issues. It also fixes at least the following security issues: Memory leak in the irdabind function in net/irda/afirda.c and later in drivers/staging/irda/net/afirda.c in the Linux kerne...

MGASA-2018-0375 Updated kernel-linus packages fix security vulnerabilities

This kernel-linus update is based on the upstream 4.14.69 and adds additional fixes for the L1TF and Spectre security issues. Other fixes in this update: all SPIINTELSPI config options have been disable to prevent a potential bios corrupting bug mga23560 For other changes in this update, see the...

Updated kernel-linus packages fix security vulnerabilities

This kernel-linus update is based on the upstream 4.14.69 and adds additional fixes for the L1TF and Spectre security issues. Other fixes in this update: all SPIINTELSPI config options have been disable to prevent a potential bios corrupting bug mga23560 For other changes in this update, see the...

Updated kernel packages fix security vulnerabilities

This kernel update is based on the upstream 4.14.69 and adds additional fixes for the L1TF and Spectre security issues. It also fixes at least the following security issues: Memory leak in the irdabind function in net/irda/afirda.c and later in drivers/staging/irda/net/afirda.c in the Linux kerne...

Updated kernel-tmb packages fix security vulnerabilities

This kernel-tmb update is based on the upstream 4.14.69 and adds additional fixes for the L1TF and Spectre security issues. It also fixes at least the following security issues: Memory leak in the irdabind function in net/irda/afirda.c and later in drivers/staging/irda/net/afirda.c in the Linux...

Unbreakable Enterprise kernel security update

kernel-uek 3.8.13-118.24.2 - x86/speculation/l1tf: Fix overflow in l1tfpfnlimit on 32bit Vlastimil Babka Orabug: 28505476 CVE-2018-3620 - x86/speculation/l1tf: Protect PAE swap entries against L1TF Vlastimil Babka Orabug: 28505476 CVE-2018-3620 - x86/speculation/l1tf: Extend 64bit swap file size...