Fedora 23 : kernel (2016-784d5526d8)

Update to latest upstream stable release, Linux v4.6.4 For those with Skylake CPUs, please note that there may be instability with a recent microcode update. Read https://www.happyassassin.net/2016/07/07/psa-failure-to-boot-after-ker nel-update-on-skylake-systems/ and look for a system firmware...

Fedora 24 : kernel (2016-9a16b2e14e)

Update to latest upstream stable release, Linux v4.6.4 For those with Skylake CPUs, please note that there may be instability with a recent microcode update. Read https://www.happyassassin.net/2016/07/07/psa-failure-to-boot-after-ker nel-update-on-skylake-systems/ and look for a system firmware...

Fedora 21 : kernel-4.1.13-100.fc21 (2015-f2c534bc12)

kernel-4.1.13-100.fc21 - Linux v4.1.13 - CVE-2015-8104 kvm: DoS infinite loop in microcode DB exception rhbz 1278496 1279691 - CVE-2015-5307 kvm: DoS infinite loop in microcode AC exception rhbz 1277172 1279688 Note that Tenable Network Security has extracted the preceding description block...

Fedora 23 : kernel-4.2.6-300.fc23 (2015-115c302856)

The 4.2.6 stable update contains a number of important fixes across the tree. kernel-4.2.6-300.fc23 - Fix incorrect size calculations in megaraid with 64K pages rhbz 1269300 - CVE-2015-8104 kvm: DoS infinite loop in microcode DB exception rhbz 1278496 1279691 - CVE-2015-5307 kvm: DoS infinite loo...

virt: guest to host DoS by triggering an infinite loop in microcode via #DB exception

It was found that the x86 ISA Instruction Set Architecture is prone to a denial of service attack inside a virtualized environment in the form of an infinite loop in the microcode due to the way sequential delivering of benign exceptions such as DB debug exception is handled. A privileged user...

virt: guest to host DoS by triggering an infinite loop in microcode via #DB exception

It was found that the x86 ISA Instruction Set Architecture is prone to a denial of service attack inside a virtualized environment in the form of an infinite loop in the microcode due to the way sequential delivering of benign exceptions such as DB debug exception is handled. A privileged user...

Important: Red Hat Security Advisory: kernel security update

Updated kernel packages that fix two security issues are now available for Red Hat Enterprise Linux 6.2 Advanced Update Support. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity...

virt: guest to host DoS by triggering an infinite loop in microcode via #AC exception

It was found that the x86 ISA Instruction Set Architecture is prone to a denial of service attack inside a virtualized environment in the form of an infinite loop in the microcode due to the way sequential delivering of benign exceptions such as AC alignment check exception is handled. A privileg...

virt: guest to host DoS by triggering an infinite loop in microcode via #DB exception

It was found that the x86 ISA Instruction Set Architecture is prone to a denial of service attack inside a virtualized environment in the form of an infinite loop in the microcode due to the way sequential delivering of benign exceptions such as DB debug exception is handled. A privileged user...

Unbreakable Enterprise kernel security update

kernel-uek 2.6.32-400.37.15uek - ipc/sem.c: fully initialize semarray before making it visible Manfred Spraul Orabug: 22250043 CVE-2015-7613 - Initialize msg/shm IPC objects before doing ipcaddid Linus Torvalds Orabug: 22250043 CVE-2015-7613 - crypto: add missing crypto module aliases Mathias...

virt: guest to host DoS by triggering an infinite loop in microcode via #AC exception

It was found that the x86 ISA Instruction Set Architecture is prone to a denial of service attack inside a virtualized environment in the form of an infinite loop in the microcode due to the way sequential delivering of benign exceptions such as AC alignment check exception is handled. A privileg...

virt: guest to host DoS by triggering an infinite loop in microcode via #DB exception

It was found that the x86 ISA Instruction Set Architecture is prone to a denial of service attack inside a virtualized environment in the form of an infinite loop in the microcode due to the way sequential delivering of benign exceptions such as DB debug exception is handled. A privileged user...

Important: Red Hat Security Advisory: kernel security update

Updated kernel packages that fix two security issues are now available for Red Hat Enterprise Linux 6.4 Advanced Update Support. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity...

openSUSE Security Update : xen (openSUSE-2015-893)

This update fixes the following security issues : - bsc947165 - CVE-2015-7311: xen: libxl fails to honour readonly flag on disks with qemu-xen xsa-142 - bsc954405 - CVE-2015-8104: Xen: guest to host DoS by triggering an infinite loop in microcode via DB exception - bsc954018 - CVE-2015-5307: xen:...

RHEL 6 : kernel (RHSA-2015:2645)

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2015:2645 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. It was found that the x86 ISA Instruction Set...

virt: guest to host DoS by triggering an infinite loop in microcode via #AC exception

It was found that the x86 ISA Instruction Set Architecture is prone to a denial of service attack inside a virtualized environment in the form of an infinite loop in the microcode due to the way sequential delivering of benign exceptions such as AC alignment check exception is handled. A privileg...

virt: guest to host DoS by triggering an infinite loop in microcode via #DB exception

It was found that the x86 ISA Instruction Set Architecture is prone to a denial of service attack inside a virtualized environment in the form of an infinite loop in the microcode due to the way sequential delivering of benign exceptions such as DB debug exception is handled. A privileged user...

virt: guest to host DoS by triggering an infinite loop in microcode via #DB exception

It was found that the x86 ISA Instruction Set Architecture is prone to a denial of service attack inside a virtualized environment in the form of an infinite loop in the microcode due to the way sequential delivering of benign exceptions such as DB debug exception is handled. A privileged user...

virt: guest to host DoS by triggering an infinite loop in microcode via #AC exception

It was found that the x86 ISA Instruction Set Architecture is prone to a denial of service attack inside a virtualized environment in the form of an infinite loop in the microcode due to the way sequential delivering of benign exceptions such as AC alignment check exception is handled. A privileg...

kernel security and bug fix update

2.6.32-573.12.1 - Revert: netdrv igb: add support for 1512 PHY Stefan Assmann 1278275 1238551 2.6.32-573.11.1 - kvm svm: unconditionally intercept DB Paolo Bonzini 1279467 1279468 CVE-2015-8104 - x86 virt: guest to host DoS by triggering an infinite loop in microcode Paolo Bonzini 1277557 1277559...