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."...

CVE-2012-4539

This CVE affects Xen hypervisor versions 4.0–4.2 when running 32-bit PV guests on 64-bit hosts. The vulnerability is triggered by invalid arguments to GNTTABOP_get_status_frames in the grant table hypercall, allowing a local guest OS administrator to cause a denial-of-service (infinite loop, hang...

Unhooking empty PAE entries DoS vulnerability

ISSUE DESCRIPTION The HVMOPpagetabledying hypercall does not correctly check the caller's pagetable state, leading to a hypervisor crash. IMPACT An HVM guest running on shadow pagetables that is, not HAP can cause the hypervisor to crash. VULNERABLE SYSTEMS All Xen versions from 4.0 onwards are...

CVE-2012-4544

The PV domain builder in Xen 4.2 and earlier does not validate the size of the kernel or ramdisk 1 before or 2 after decompression, which allows local guest administrators to cause a denial of service domain 0 memory consumption via a crafted a kernel or b ramdisk...

Design/Logic Flaw

The PV domain builder in Xen 4.2 and earlier does not validate the size of the kernel or ramdisk 1 before or 2 after decompression, which allows local guest administrators to cause a denial of service domain 0 memory consumption via a crafted a kernel or b ramdisk...

CVE-2012-4544

The PV domain builder in Xen 4.2 and earlier does not validate the size of the kernel or ramdisk 1 before or 2 after decompression, which allows local guest administrators to cause a denial of service domain 0 memory consumption via a crafted a kernel or b ramdisk...

CVE-2012-4544

The PV domain builder in Xen 4.2 and earlier does not validate the size of the kernel or ramdisk 1 before or 2 after decompression, which allows local guest administrators to cause a denial of service domain 0 memory consumption via a crafted a kernel or b ramdisk...

CVE-2012-4544

CVE-2012-4544 affects the Xen PV domain builder in Xen 4.2 and earlier. The vulnerability stems from not validating the size of the kernel or ramdisk (before or after decompression), enabling a local guest administrator to cause a denial of service by exhausting domain 0 memory with a crafted ker...

CVE-2012-4544

The PV domain builder in Xen 4.2 and earlier does not validate the size of the kernel or ramdisk 1 before or 2 after decompression, which allows local guest administrators to cause a denial of service domain 0 memory consumption via a crafted a kernel or b ramdisk...

SuSE 10 Security Update : Xen (ZYPP Patch Number 8268)

XEN was updated to fix multiple bugs and security issues. The following security issues have been fixed : - xen: hypercall setdebugreg vulnerability XSA-12. CVE-2012-3494 - xen: Qemu VT100 emulation vulnerability XSA-17. CVE-2012-3515 - xen: pv bootloader doesn't check the size of the bzip2 or lz...

CVE-2012-3805

Multiple cross-site scripting XSS vulnerabilities in the getAllPassedParams function in system/functions.php in Kajona before 3.4.2 allow remote attackers to inject arbitrary web script or HTML via the 1 absendername, 2 absenderemail, or 3 absendernachricht parameter to the content page; 4...

1

2.6.18-308.11.1.0.1.el5 - net bonding: fix carrier detect when bond is down orabug 12377284 - mm fix hugetlb page leak Dave McCracken orabug 12375075 - fix ia64 build error due to add-support-above-32-vcpus.patchZhenzhong Duan - x86 use dynamic vcpuinfo remap to support more than 32 vcpus Zhenzho...

Fedora 16 : xen-4.1.2-8.fc16 (2012-9399)

make pygrub cope better with big files from guest 818412 CVE-2012-2625, 64-bit PV guest privilege escalation vulnerability CVE-2012-0217, guest denial of service on syscall/sysenter exception generation CVE-2012-0218, PV guest host Denial of Service CVE-2012-2934 Note that Tenable Network Securit...

Fedora 15 : xen-4.1.2-8.fc15 (2012-9430)

make pygrub cope better with big files from guest 818412 CVE-2012-2625, 64-bit PV guest privilege escalation vulnerability CVE-2012-0217, guest denial of service on syscall/sysenter exception generation CVE-2012-0218, PV guest host Denial of Service CVE-2012-2934 Note that Tenable Network Securit...

Fedora 17 : xen-4.1.2-20.fc17 (2012-9386)

64-bit PV guest privilege escalation vulnerability CVE-2012-0217, guest denial of service on syscall/sysenter exception generation CVE-2012-0218, PV guest host Denial of Service CVE-2012-2934 Enable xenconsoled by default under systemd, adjust xend.service systemd file to avoid selinux problems...

Xen <= 3.3 DoS due to incorrect virtual address validation

ISSUE DESCRIPTION The x8664 addrok macro intends to ensure that the checked address is either in the positive half of the 48-bit virtual address space, or above the Xen-reserved area. However, the current shift count is off-by-one, allowing full access to the "negative half" too, via certain...

Host crash due to failure to correctly validate PV kernel execution state

ISSUE DESCRIPTION Cannot specify user mode execution without specifying user-mode pagetables. Failure to validate this allows a malicious or buggy 64 bit PV guest to crash the host. nb: predates vulnerability handling process and therefore no formal announcement...

kernel security and bug fix update

2.6.18-238.5.1.0.1.el5 - scsi fix scsi hotplug and rescan race orabug 10260172 - fix filpclose race Joe Jin orabug 10335998 - fix missing aiocomplete in endio Joel Becker orabug 10365195 - make xenkbd.abspointer=1 by default orabug 67188919 - xen check to see if hypervisor supports memory...

kernel security and bug fix update

2.6.18-238.1.1.0.1.el5 - fix filpclose race Joe Jin orabug 10335998 - fix missing aiocomplete in endio Joel Becker orabug 10365195 - make xenkbd.abspointer=1 by default orabug 67188919 - xen check to see if hypervisor supports memory reservation change Chuck Anderson orabug 7556514 - net Enable...