Fedora 20 : xen-4.3.1-1.fc20 (2013-20517)

update to xen-4.3.1, Lock order reversal between page allocation and grant table lock ocaml xenstored mishandles oversized message replies systemd changes to allow oxenstored to be used instead of xenstored Note that Tenable Network Security has extracted the preceding description block directly...

DEBIAN-CVE-2013-4494

Xen before 4.1.x, 4.2.x, and 4.3.x does not take the pagealloclock and granttable.lock in the same order, which allows local guest administrators with access to multiple vcpus to cause a denial of service host deadlock via unspecified vectors...

Lock order reversal between page allocation and grant table locks

ISSUE DESCRIPTION The locks pagealloclock and granttable.lock are not always taken in the same order. This opens the possibility of deadlock. IMPACT A malicious guest administrator can deny service to the entire host. VULNERABLE SYSTEMS Xen versions going back to at least Xen 3.2 are vulnerable. ...

Debian Security Advisory DSA 2582-1 (xen - several vulnerabilities)

Multiple denial of service vulnerabilities have been discovered in the Xen Hypervisor. One of the issue CVE-2012-5513 could even lead to privilege escalation from guest to host. Some of the recently published Xen Security Advisories XSA 25 and 28 are not fixed by this update and should be fixed i...

Debian Security Advisory DSA 2666-1 (xen - several vulnerabilities)

Multiple vulnerabilities have been discovered in the Xen hypervisor. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2013-1918 XSA 45 several long latency operations are not preemptible. Some page table manipulation operations for PV guests were not made...

Debian: Security Advisory (DSA-2666-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2013 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...

SuSE 11.2 Security Update : Xen (SAT Patch Number 7018)

XEN was updated to fix various bugs and security issues : The following security issues have been fixed : - xen: Domain builder Out-of-memory due to malicious kernel/ramdisk XSA 25. CVE-2012-4544 - XEN / qemu: guest administrator can access qemu monitor console XSA-19. CVE-2012-4411 - xen: Timer...

CVE-2012-5510

Xen 4.x, when downgrading the grant table version, does not properly remove the status page from the tracking list when freeing the page, which allows local guest OS administrators to cause a denial of service hypervisor crash via unspecified vectors...

DEBIAN-CVE-2012-5510

Xen 4.x, when downgrading the grant table version, does not properly remove the status page from the tracking list when freeing the page, which allows local guest OS administrators to cause a denial of service hypervisor crash via unspecified vectors...

CVE-2012-5510

Xen 4.x, when downgrading the grant table version, does not properly remove the status page from the tracking list when freeing the page, which allows local guest OS administrators to cause a denial of service hypervisor crash via unspecified vectors...

CVE-2012-5510

Xen 4.x, when downgrading the grant table version, does not properly remove the status page from the tracking list when freeing the page, which allows local guest OS administrators to cause a denial of service hypervisor crash via unspecified vectors...

Design/Logic Flaw

Xen 4.x, when downgrading the grant table version, does not properly remove the status page from the tracking list when freeing the page, which allows local guest OS administrators to cause a denial of service hypervisor crash via unspecified vectors...

CVE-2012-5510

Xen 4.x, when downgrading the grant table version, does not properly remove the status page from the tracking list when freeing the page, which allows local guest OS administrators to cause a denial of service hypervisor crash via unspecified vectors...

CVE-2012-5510

Xen 4.x, when downgrading the grant table version, does not properly remove the status page from the tracking list when freeing the page, which allows local guest OS administrators to cause a denial of service hypervisor crash via unspecified vectors...

Grant table version switch list corruption vulnerability

ISSUE DESCRIPTION Downgrading the grant table version of a guest involves freeing its status pages. This freeing was incomplete - the pages are freed back to the allocator, but not removed from the domain's tracking list. This would cause list corruption, eventually leading to a hypervisor crash...

XEN: security and bugfix update (important)

This security update of XEN fixes various bugs and security issues. - Upstream patch 26088-xend-xml-filesize-check.patch - bnc787163 - CVE-2012-4544: xen: Domain builder Out-of- memory due to malicious kernel/ramdisk XSA 25 CVE-2012-4544-xsa25.patch - bnc779212 - CVE-2012-4411: XEN / qemu: guest...

CVE-2012-4539

Xen 4.0 through 4.2, when running 32-bit x86 PV guests on 64-bit hypervisors, allows local guest OS administrators to cause a denial of service infinite loop and hang or crash via invalid arguments to GNTTABOPgetstatusframes, aka "Grant table hypercall infinite loop DoS vulnerability."...

DEBIAN-CVE-2012-4539

Xen 4.0 through 4.2, when running 32-bit x86 PV guests on 64-bit hypervisors, allows local guest OS administrators to cause a denial of service infinite loop and hang or crash via invalid arguments to GNTTABOPgetstatusframes, aka "Grant table hypercall infinite loop DoS vulnerability."...

grant table entry swaps have inadequate bounds checking

ISSUE DESCRIPTION The grant table hypercall's GNTTABOPswapgrantref sub-operation does not perform adequate checks on the input grant references. IMPACT A malicious guest kernel or administrator can crash the host. It may be possible for an attacker to swap a valid grant reference, which they...

SuSE 10 Security Update : Xen (ZYPP Patch Number 2155)

This update includes both bug fixes and security fixes for Xen. A summary of the fixes appears below: 151105 - Fix various 'leaks' of loopback devices w/ domUloader 162865 - Re-send all page tables when migrating to avoid oops 167145 - Add status messages during file backed disk creation 176369 -...