Debian DLA-248-1 : qemu security update (Venom)

A vulnerability was discovered in the qemu virtualisation solution : CVE-2015-3456 Jason Geffner discovered a buffer overflow in the emulated floppy disk drive, resulting in the potential execution of arbitrary code. Despite the end-of-life of qemu support in the old-oldstable distribution...

Debian DLA-249-1 : qemu-kvm security update (Venom)

A vulnerability was discovered in the qemu virtualisation solution : CVE-2015-3456 Jason Geffner discovered a buffer overflow in the emulated floppy disk drive, resulting in the potential execution of arbitrary code. Despite the end-of-life of qemu-kvm support in the old-oldstable distribution...

Heap overflow in QEMU PCNET controller, allowing guest->host escape

ISSUE DESCRIPTION The QEMU security team has predisclosed the following advisory: pcnettransmit loads a transmit-frame descriptor from the guest into the /tmd/ local variable to recover a length field, a status field and a guest-physical location of the associated frame buffer. If the status fiel...

Fedora 22 : xen-4.5.0-9.fc22 (2015-8194) (Venom)

Privilege escalation via emulated floppy disk drive XSA-133, CVE-2015-3456 1221153 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without...

Fedora 21 : xen-4.4.2-4.fc21 (2015-8270) (Venom)

Privilege escalation via emulated floppy disk drive XSA-133, CVE-2015-3456 1221153 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without...

Debian DSA-3262-1 : xen - security update (Venom)

Jason Geffner discovered a buffer overflow in the emulated floppy disk drive, resulting in the potential execution of arbitrary code. This only affects HVM guests. %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from Debia...

Security update for xen (important)

Xen was updated to 4.3.4 to fix multiple vulnerabities and non-security bugs. The following vulnerabilities were fixed: - Long latency MMIO mapping operations are not preemptible XSA-125 CVE-2015-2752 bnc922705 - Unmediated PCI command register access in qemu XSA-126 CVE-2015-2756 bnc922706 -...

Fedora 22 : xen-4.5.0-6.fc22 (2015-3935)

Additional patch for XSA-98 on arm64 HVM qemu unexpectedly enabling emulated VGA graphics backends XSA-119, CVE-2015-2152 Hypervisor memory corruption due to x86 emulator flaw XSA-123, CVE-2015-2151 Information leak via internal x86 system device emulation, Information leak through version...

xen-tools -- HVM qemu unexpectedly enabling emulated VGA graphics backends

The Xen Project reports: When instantiating an emulated VGA device for an x86 HVM guest qemu will by default enable a backend to expose that device, either SDL or VNC depending on the version of qemu and the build time configuration. The libxl toolstack library does not explicitly disable these...

HVM qemu unexpectedly enabling emulated VGA graphics backends

ISSUE DESCRIPTION When instantiating an emulated VGA device for an x86 HVM guest qemu will by default enable a backend to expose that device, either SDL or VNC depending on the version of qemu and the build time configuration. The libxl toolstack library does not explicitly disable these default...

SUSE-SU-2015:0613-1 Security update for Xen

The XEN hypervisor received updates to fix various security issues and bugs. The following security issues were fixed: - CVE-2015-2151: XSA-123: A hypervisor memory corruption due to x86 emulator flaw. - CVE-2015-2045: XSA-122: Information leak through version information hypercall. -...

Fedora 20 : xen-4.3.3-6.fc20 (2014-15995)

Excessive checking in compatibility mode hypercall argument translation, Insufficient bounding of 'REP MOVS' to MMIO emulated inside the hypervisor, fix segfaults and failures in xl migrate --debug Note that Tenable Network Security has extracted the preceding description block directly from the...

D-Link DIR-505 HNAP Request Remote Buffer Overflow Exploit

Stack-based buffer overflow in the dohnap function in www/mycgi.cgi in D-Link DSP-W215 Rev. A1 with firmware 1.01b06 and earlier, DIR-505 with firmware before 1.08b10, and DIR-505L with firmware 1.01 and earlier allows remote attackers to execute arbitrary code via a long Content-Length header in...

D-Link info.cgi POST Request Buffer Overflow

This module exploits an anonymous remote code execution vulnerability on different D-Link devices. The vulnerability is a stack based buffer overflow in the mycgi.cgi component, when handling specially crafted POST HTTP requests addresses to the /common/info.cgi handler. This module has been...

UBUNTU-CVE-2014-0049

Buffer overflow in the completeemulatedmmio function in arch/x86/kvm/x86.c in the Linux kernel before 3.13.6 allows guest OS users to execute arbitrary code on the host OS by leveraging a loop that triggers an invalid memory copy affecting certain cancelworkitem data...

PT-2014-1009 · Linux +1 · Linux Kernel +1

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 3.13.6 Description: The issue is related to a buffer overflow in the complete emulated mmio function, which allows guest OS users to execute arbitrary code on the host OS. This is achieved by leveraging a loop...

CVE-2013-2211

The libxenlight libxl toolstack library in Xen 4.0.x, 4.1.x, and 4.2.x uses weak permissions for xenstore keys for paravirtualised and emulated serial console devices, which allows local guest administrators to modify the xenstore value via unspecified vectors...

CVE-2013-2211

The libxenlight libxl toolstack library in Xen 4.0.x, 4.1.x, and 4.2.x uses weak permissions for xenstore keys for paravirtualised and emulated serial console devices, which allows local guest administrators to modify the xenstore value via unspecified vectors...

CVE-2013-2211

The libxenlight libxl toolstack library in Xen 4.0.x, 4.1.x, and 4.2.x uses weak permissions for xenstore keys for paravirtualised and emulated serial console devices, which allows local guest administrators to modify the xenstore value via unspecified vectors...

CVE-2013-2211

CVE-2013-2211 concerns the Xen hypervisor, where the libxenlight (libxl) toolstack library in Xen 4.0.x, 4.1.x, and 4.2.x uses weak permissions on xenstore keys for paravirtualised and emulated serial console devices. This allows a local guest administrator to modify the xenstore value via unspec...