CVE-2012-4537: Undefined Security Weakness

Xen 3.4 through 4.2, and possibly earlier versions, does not properly synchronize the p2m and m2p tables when the setp2mentry function fails, which allows local HVM guest OS administrators to cause a denial of service memory consumption and assertion failure, aka "Memory mapping failure DoS...

pirq range check DoS vulnerability

ISSUE DESCRIPTION domainpirqtoemuirq uses the guest provided pirq value before range checking it, and physdevunmappirq uses domainpirqtoemuirq without checking the pirq value either. Invalid pirq values can cause Xen to read out of array bounds, usually resulting in a fatal page fault. IMPACT A...

Security Update for Xen (important)

Security Update for Xen Following fixes were done: - bnc776995 - attaching scsi control luns with pvscsi - xend/pvscsi: fix passing of SCSI control LUNs xen-bug776995-pvscsi-no-devname.patch - xend/pvscsi: fix usage of persistant device names for SCSI devices...

Debian DSA-2543-1 : xen-qemu-dm-4.0 - multiple vulnerabilities

Multiple vulnerabilities have been discovered in xen-qemu-dm-4.0, the Xen QEMU Device Model virtual machine hardware emulator. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2012-3515 : The device model for HVM domains does not properly handle VT100...

PHYSDEVOP_map_pirq index vulnerability

ISSUE DESCRIPTION PHYSDEVOPmappirq with MAPPIRQTYPEGSI does not range check map-index. IMPACT A malicious HVM guest kernel can crash the host. It might also be able to read hypervisor or guest memory. VULNERABLE SYSTEMS All Xen systems running HVM guests. PV guests are not vulnerable. The...

Fedora 17 : xen-4.1.3-2.fc17 (2012-11755)

fix for 845444 broke xend under systemd, update to 4.1.3, includes fix for untrusted HVM guest can cause the dom0 to hang or crash XSA-11, CVE-2012-3433 843582 remove some unnecessary cache flushing that slow things down, change python options on xend to reduce selinux problems 845444 Note that...

Fedora 16 : xen-4.1.3-1.fc16 (2012-11785)

update to 4.1.3 - fixes untrusted HVM guest can cause the dom0 to hang or crash XSA-11, CVE-2012-3433 843582 remove some unnecessary cache flushing that slow things down 841330 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security...

HVM guest destroy p2m teardown host DoS vulnerability

ISSUE DESCRIPTION An HVM guest is able to manipulate its physical address space such that tearing down the guest takes an extended period amount of time searching for shared pages. This causes the domain 0 VCPU which tears down the domain to be blocked in the destroy hypercall. This causes that...

CVE-2012-3433

Xen 4.0 and 4.1 allows local HVM guest OS kernels to cause a denial of service domain 0 VCPU hang and kernel panic by modifying the physical address space in a way that triggers excessive shared page search time during the p2m teardown...

Fedora 16 : xen-4.1.2-9.fc16 (2012-11190)

in rare circumstances an unprivileged user can crash an HVM guest XSA-10 843766 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 17 : xen-4.1.2-24.fc17 (2012-11182)

in rare circumstances an unprivileged user can crash an HVM guest XSA-10 843766, remove a dependency on PyXML and Require python-lxml instead of PyXML 842843 adjust systemd service files not to report failures when running without a hypervisor or when xendomains.service doesn't find anything to...

Fedora 15 : xen-4.1.2-6.fc15 (2012-1539)

Fix buffer overflow in e1000 emulation for HVM guests CVE-2012-0029, Start building xen's ocaml, fix a crash and turn a backtrace into an ordinary error Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempt...

SuSE 10 Security Update : Xen (ZYPP Patch Number 7547)

This collective June/2011 Update for Xen provides the following fixes : - Xen does not properly check the upper boundary of user-supplied data in the getfreeport function when getting a new event channel port. A local user on the guest operating system can exploit this flaw to cause denial of...

SuSE 10 Security Update : Xen (ZYPP Patch Number 7703)

This update fixes various bugs in XEN : The following security issues have been fixed : - A denial of service Host Crash in the XEN hypervisor. CVE-2011-2901 - A bug was found in the way Xen handles CPUID instruction emulation during VM exits. An unprivileged guest user can potentially use this...

SuSE 11.1 Security Update : Xen (SAT Patch Number 4977)

Security / Collective Update for Xen Xen : - VUL-0: xen: VT-d PCI passthrough MSI trap injection. CVE-2011-1898. bnc702025 - update block-npiv scripts to support BFA HBA. bnc703924 - L3: Live migrations fail when guest crashes: domaincrashsync called from entry.S. bnc689954 - Bridge hangs cause...

xen: Fixed a security bug and various other bugs (important)

Security / Collective Update for Xen Xen: - bnc702025 - VUL-0: xen: VT-d PCI passthrough MSI trap injection CVE-2011-1898 - bnc703924 - update block-npiv scripts to support BFA HBA - bnc689954 - L3: Live migrations fail when guest crashes: domaincrashsync called from entry.S - bnc693472 - Bridge...

CentOS Update for kernel CESA-2010:0936 centos4 i386

The remote host is missing an update for the SPDX-FileCopyrightText: 2011 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription scriptxrefname:"URL",...

Important: Red Hat Security Advisory: kernel security and bug fix update

Updated kernel packages that fix two security issues and multiple bugs are now available for Red Hat Enterprise Linux 4. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity...

kernel security and bug fix update

2.6.18-194.26.1.0.1.el5 - xen check to see if hypervisor supports memory reservation change Chuck Anderson orabug 7556514 - Add entropy support to igb John Sobecki orabug 7607479 - nfs convert ENETUNREACH to ENOTCONN orabug 7689332 - NET Add xen pv/bonding netconsole support Tina Yang orabug...

MDVA-2009:006 : xen

The xen package released in Mandriva Linux 2009.0 lacks udev rules for handling hotplug events. As a result trying to create an HVM host will fail with this kind of error message: 'Error: Device 0 vif could not be connected Hotplug scripts not working'. Additionaly, it also add PCI pass-through...