ALPINE-CVE-2016-8577

Memory leak in the v9fsread function in hw/9pfs/9p.c in QEMU aka Quick Emulator allows local guest OS administrators to cause a denial of service memory consumption via vectors related to an I/O read operation...

UBUNTU-CVE-2016-8576

The xhciringfetch function in hw/usb/hcd-xhci.c in QEMU aka Quick Emulator allows local guest OS administrators to cause a denial of service infinite loop and QEMU process crash by leveraging failure to limit the number of link Transfer Request Blocks TRB to process...

UBUNTU-CVE-2016-8909

The intelhdaxfer function in hw/audio/intel-hda.c in QEMU aka Quick Emulator allows local guest OS administrators to cause a denial of service infinite loop and CPU consumption via an entry with the same value for buffer length and pointer position...

UBUNTU-CVE-2016-8910

The rtl8139cplustransmit function in hw/net/rtl8139.c in QEMU aka Quick Emulator allows local guest OS administrators to cause a denial of service infinite loop and CPU consumption by leveraging failure to limit the ring descriptor count...

openSUSE Security Update : virtualbox (openSUSE-2016-1226)

This update for virtualbox fixes the following issues : - Address CVE-2016-5501, CVE-2016-5538, CVE-2016-5605, CVE-2016-5608, CVE-2016-5610, CVE-2016-5611, CVE-2016-5613 boo1005621. - Reduce memory needs during build. - Version bump to 5.0.28 released 2016-10-18 by Oracle This is a maintenance...

CVE-2016-7777 - Citrix XenServer Security Update

Description of Problem A security vulnerability has been identified in Citrix XenServer that may allow malicious user code within an HVM guest VM to read or modify the contents of certain registers belonging to other tasks within that same guest VM. This vulnerability affects all currently...

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...

DEBIAN-CVE-2016-7092

The getpagefroml3e function in arch/x86/mm.c in Xen allows local 32-bit PV guest OS administrators to gain host OS privileges via vectors related to L3 recursive pagetables...

ALPINE-CVE-2016-7092

The getpagefroml3e function in arch/x86/mm.c in Xen allows local 32-bit PV guest OS administrators to gain host OS privileges via vectors related to L3 recursive pagetables...

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

Bulletin has no description...

x86: Disallow L3 recursive pagetable for 32-bit PV guests

ISSUE DESCRIPTION On real hardware, a 32-bit PAE guest must leave the USER and RW bit clear in L3 pagetable entries, but the pagetable walk behaves as if they were set. The L3 entries are cached in processor registers, and don't actually form part of the pagewalk. When running a 32-bit PV guest o...

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...

xen-kernel -- x86: Disallow L3 recursive pagetable for 32-bit PV guests

The Xen Project reports: On real hardware, a 32-bit PAE guest must leave the USER and RW bit clear in L3 pagetable entries, but the pagetable walk behaves as if they were set. The L3 entries are cached in processor registers, and don't actually form part of the pagewalk. When running a 32-bit PV...

UBUNTU-CVE-2016-7116

Directory traversal vulnerability in hw/9pfs/9p.c in QEMU aka Quick Emulator allows local guest OS administrators to access host files outside the export path via a .. dot dot in an unspecified string...

PT-2016-7128 · Qemu Team +3 · Qemu +3

Name of the Vulnerable Software and Affected Versions: QEMU aka Quick Emulator affected versions not specified Description: A use-after-free issue in the vmxnet3 io bar0 write function allows local guest OS administrators to cause a denial of service by crashing the QEMU instance. This is due to ...

USN-3050-1: Linux kernel (OMAP4) vulnerabilities

Ben Hawkes discovered that the Linux netfilter implementation did not correctly perform validation when handling IPTSOSETREPLACE events. A local unprivileged attacker could use this to cause a denial of service system crash or possibly execute arbitrary code with administrative privileges...

Fedora 23 : xen (2016-0049aa6e5d) (Bunker Buster)

x86: Privilege escalation in PV guests XSA-182, CVE-2016-6258 x86: Missing SMAP whitelisting in 32-bit exception / event delivery XSA-183, CVE-2016-6259 virtio: unbounded memory allocation issue XSA-184, CVE-2016-5403 Qemu: scsi: esp: OOB write access in espdodma CVE-2016-6351 Note that Tenable...

FreeBSD : xen-kernel -- x86: Privilege escalation in PV guests (032aa524-5854-11e6-b334-002590263bf5) (Bunker Buster)

The Xen Project reports : The PV pagetable code has fast-paths for making updates to pre-existing pagetable entries, to skip expensive re-validation in safe cases e.g. clearing only Access/Dirty bits. The bits considered safe were too broad, and not actually safe. A malicious PV guest administrat...