Fedora 23 : xen (2016-1c3374bcb9)

x86: Disallow L3 recursive pagetable for 32-bit PV guests XSA-185, CVE-2016-7092 1374470 x86: Mishandling of instruction pointer truncation during emulation XSA-186, CVE-2016-7093 1374471 x86 HVM: Overflow of shctxt-segreg XSA-187, CVE-2016-7094 1374473 Note that Tenable Network Security has...

CVE-2016-7094

Buffer overflow in Xen 4.7.x and earlier allows local x86 HVM guest OS administrators on guests running with shadow paging to cause a denial of service via a pagetable update...

DEBIAN-CVE-2016-7094

Buffer overflow in Xen 4.7.x and earlier allows local x86 HVM guest OS administrators on guests running with shadow paging to cause a denial of service via a pagetable update...

CVE-2016-7094

Buffer overflow in Xen 4.7.x and earlier allows local x86 HVM guest OS administrators on guests running with shadow paging to cause a denial of service via a pagetable update...

Buffer overflow

Buffer overflow in Xen 4.7.x and earlier allows local x86 HVM guest OS administrators on guests running with shadow paging to cause a denial of service via a pagetable update...

Design/Logic Flaw

Xen 4.5.3, 4.6.3, and 4.7.x allow local HVM guest OS administrators to overwrite hypervisor memory and consequently gain host OS privileges by leveraging mishandling of instruction pointer truncation during emulation...

Fedora 24 : xen (2016-7d2c67d1f5)

x86: Disallow L3 recursive pagetable for 32-bit PV guests XSA-185, CVE-2016-7092 1374470 x86: Mishandling of instruction pointer truncation during emulation XSA-186, CVE-2016-7093 1374471 x86 HVM: Overflow of shctxt-segreg XSA-187, CVE-2016-7094 1374473 Note that Tenable Network Security has...

[SECURITY] [DSA 3663-1] xen security update

------------------------------------------------------------------------- Debian Security Advisory DSA-3663-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso September 09, 2016 https://www.debian.org/security/faq -...

DSA-3663-1 xen - security update

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Debian Security Advisory DSA 3663-1 (xen - security update)

Multiple vulnerabilities have been discovered in the Xen hypervisor. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2016-7092 XSA-185 Jeremie Boutoille of Quarkslab and Shangcong Luan of Alibaba discovered a flaw in the handling of L3 pagetable entries,...

Xen release 4 an important vulnerability advisories-vulnerability warning-the black bar safety net

! Today the Xen Update 4 important patch announcement XSA-1 8 5, AND XSA-1 8 6, AND XSA-1 8 7, AND XSA-1 8 8, wherein the XSA-1 8 5, AND XSA-1 8 6, AND XSA-1 8 8 can be caused to include PV, HVM mode in Xen host is penetrated, the recommended use of the Xen Platform Update Now patch. XSA-1 8 5CVE...

CVE-2016-7094

Buffer overflow in Xen 4.7.x and earlier allows local x86 HVM guest OS administrators on guests running with shadow paging to cause a denial of service via a pagetable update...

CVE-2016-7093

Xen 4.5.3, 4.6.3, and 4.7.x allow local HVM guest OS administrators to overwrite hypervisor memory and consequently gain host OS privileges by leveraging mishandling of instruction pointer truncation during emulation...

x86: Mishandling of instruction pointer truncation during emulation

ISSUE DESCRIPTION When emulating HVM instructions, Xen uses a small i-cache for fetches from guest memory. The code that handles cache misses does not check if the address from which it fetched lies within the cache before blindly writing to it. As such it is possible for the guest to overwrite...

x86 HVM: Overflow of sh_ctxt->seg_reg[]

ISSUE DESCRIPTION x86 HVM guests running with shadow paging use a subset of the x86 emulator to handle the guest writing to its own pagetables. There are situations a guest can provoke which result in exceeding the space allocated for internal state. IMPACT A malicious HVM guest administrator can...

xen-kernel -- x86 HVM: Overflow of sh_ctxt->seg_reg[]

The Xen Project reports: x86 HVM guests running with shadow paging use a subset of the x86 emulator to handle the guest writing to its own pagetables. There are situations a guest can provoke which result in exceeding the space allocated for internal state. A malicious HVM guest administrator can...

xen-kernel -- x86: Mishandling of instruction pointer truncation during emulation

The Xen Project reports: When emulating HVM instructions, Xen uses a small i-cache for fetches from guest memory. The code that handles cache misses does not check if the address from which it fetched lies within the cache before blindly writing to it. As such it is possible for the guest to...

Debian DLA-571-1 : xen security update (Bunker Buster)

Multiple vulnerabilities have been discovered in the Xen hypervisor. The Common Vulnerabilities and Exposures project identifies the following problems : CVE-2014-3672 XSA-180 Andrew Sorensen discovered that a HVM domain can exhaust the hosts disk space by filling up the log file. CVE-2016-3158,...

The XEN virtual machine monitor appears“deadly”vulnerabilities-vulnerability warning-the black bar safety net

! XEN has always been known for high performance, less resource-intensive, win IBM, AMD, HP, Red Hat and Novell, and many other world-class hardware and software manufacturers of high recognition and strong support of many domestic and foreign enterprises and users to use XEN to build a...

OracleVM 3.2 : xen (OVMSA-2016-0090)

The remote OracleVM system is missing necessary patches to address critical security updates : - x86/HVM: correct CPUID leaf 80000008 handling - 6c733e54 xsa173010001-x86-HVM-correct-CPUID-leaf-80000008-handl ing.patch was based on upstream commit: ef437690af8b75e6758dce77af75a22b63982883 x86/HVM...