CVE-2018-16882

A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted interrupts when nested=1 virtualization is enabled. In nestedgetvmcs12pages, in case of an error while processing posted interrupt address, it unmaps the 'pidescpage' without resetting 'pidesc' descript...

CVE-2018-16882

A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted interrupts when nested=1 virtualization is enabled. In nestedgetvmcs12pages, in case of an error while processing posted interrupt address, it unmaps the 'pidescpage' without resetting 'pidesc' descript...

UBUNTU-CVE-2018-16882

A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted interrupts when nested=1 virtualization is enabled. In nestedgetvmcs12pages, in case of an error while processing posted interrupt address, it unmaps the 'pidescpage' without resetting 'pidesc' descript...

PT-2018-2986 · Linux +3 · Linux Kernel +3

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 4.14.91 Linux kernel versions prior to 4.19.13 Description: The issue is related to a use-after-free problem in the Linux kernel's KVM hypervisor when processing posted interrupts with nested virtualization...

kernel security and bug fix update

2.6.32-754.OL6 - Update genkey bug 25599697 2.6.32-754 - powerpc 64s: Add support for a store forwarding barrier at kernel entry/exit Mauricio Oliveira 1581053 CVE-2018-3639 - x86 amd: Disable AMD SSBD mitigation in a VM Waiman Long 1580360 - x86 specctrl: Fix late microcode problem with AMD Waim...

SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1505-1)

This update for the Linux Kernel 4.4.74-9229 fixes several issues. The following security issues were fixed : - CVE-2017-13166: An elevation of privilege vulnerability in the kernel v4l2 video driver was fixed. bsc1085447. - CVE-2018-8897: A statement in the System Programming Guide of the Intel ...

AMD / ARM / Intel - Speculative Execution Variant 4 Speculative Store Bypass Exploit

Exploit for hardware platform in category dos / poc / ======== Intro / Overview ======== After Michael Schwarz made some interesting observations, we started looking into variants other than the three already-known ones. I noticed that Intel's Optimization Manual says in section 2.4.4.5 "Memory...

AMD / ARM / Intel - Speculative Execution Variant 4 Speculative Store Bypass

/ ======== Intro / Overview ======== After Michael Schwarz made some interesting observations, we started looking into variants other than the three already-known ones. I noticed that Intel's Optimization Manual says in section 2.4.4.5 "Memory Disambiguation": A load instruction micro-op may depe...

Design/Logic Flaw

kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel's KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4098)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2018-4098 advisory. kernel-uek 3.8.13-118.20.7 - x86/entry/64: Dont use IST entry for BP stack Andy Lutomirski CVE-2018-8897 Tenable has extracted the preceding description blo...

Kernel: KVM: error in exception handling leads to wrong debug stack value

A flaw was found in the way the Linux kernel's KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first...

CVE-2018-8897

A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer's Manual SDM was mishandled in the development of some or all operating-system kernels, resulting in unexpected behavior for DB exceptions that are deferred by MOV SS or POP SS, as demonstrated ...

CVE-2018-8897

A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer's Manual SDM was mishandled in the development of some or all operating-system kernels, resulting in unexpected behavior for DB exceptions that are deferred by MOV SS or POP SS, as demonstrated ...

CVE-2018-8897

A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer's Manual SDM was mishandled in the development of some or all operating-system kernels, resulting in unexpected behavior for DB exceptions that are deferred by MOV SS or POP SS, as demonstrated ...

CVE-2018-8897

A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer's Manual SDM was mishandled in the development of some or all operating-system kernels, resulting in unexpected behavior for DB exceptions that are deferred by MOV SS or POP SS, as demonstrated ...

CVE-2018-8897

A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer's Manual SDM was mishandled in the development of some or all operating-system kernels, resulting in unexpected behavior for DB exceptions that are deferred by MOV SS or POP SS, as demonstrated ...

Unbreakable Enterprise kernel security update

4.1.12-112.14.10 - x86/ia32: save and clear registers on syscall. Jamie Iles Orabug: 27355759 CVE-2017-5754 - x86/IBRS: Save current status of MSRIA32SPECCTRL Boris Ostrovsky Orabug: 27355887 - pti: Rename X86FEATUREKAISER to X86FEATUREPTI Pavel Tatashin Orabug: 27352353 CVE-2017-5754 - usb/core:...

SUSE SLES12 Security Update : xen (SUSE-SU-2017:2873-1)

This update for xen fixes several issues: These security issues were fixed : - CVE-2017-5526: The ES1370 audio device emulation support was vulnerable to a memory leakage issue allowing a privileged user inside the guest to cause a DoS and/or potentially crash the Qemu process on the host...

SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2017:2864-1)

This update for xen fixes several issues: These security issues were fixed : - CVE-2017-5526: The ES1370 audio device emulation support was vulnerable to a memory leakage issue allowing a privileged user inside the guest to cause a DoS and/or potentially crash the Qemu process on the host...

CVE-2017-12154

Linux kernel built with the KVM visualization support CONFIGKVM, with nested visualization nVMX feature enabled nested=1, is vulnerable to a crash due to disabled external interrupts. As L2 guest could access r/w hardware CR8 register of the hostL0. In a nested visualization setup, L2 guest user...