RedHat Security Advisory RHSA-2009:1472

The remote host is missing updates announced in advisory RHSA-2009:1472. Xen is an open source virtualization framework. Virtualization allows users to run guest operating systems in virtual machines on top of a host operating system. The pyGrub boot loader did not honor the password option in th...

kernel-xen 3.1.1 does not prevent modification of the CR4 TSC from applications (DoS possible)

Xen 3.1.1 does not prevent modification of the CR4 TSC from applications, which allows pv guests to cause a denial of service crash...

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

Updated xen packages that resolve a couple of security issues and fix a bug are now available for Red Hat Enterprise Linux 5. This update has been rated as having important security impact by the Red Hat Security Response Team. The xen packages contain tools for managing the virtual machine monit...

qemu/xen/kvm: ioemu: Fix PVFB backend to limit frame buffer size

The backend for XenSource Xen Para Virtualized Frame Buffer PVFB in Xen ioemu does not properly restrict the frame buffer size, which allows attackers to cause a denial of service crash by mapping an arbitrary amount of guest memory...

xen xenmon.py / xenbaked insecure temporary file accesss

1 xenbaked and 2 xenmon.py in Xen 3.1 and earlier allow local users to truncate arbitrary files via a symlink attack on /tmp/xenq-shm...

[xen-ia64] Dom0 panic while we run ftp test tool between HVM and Dom0.

The ssmi emulation in Xen 5.1 on IA64 architectures allows attackers to cause a denial of service dom0 panic via certain traffic, as demonstrated using an FTP stress test tool...

xen QEMU NE2000 emulation issues

Integer signedness error in the NE2000 emulator in QEMU 0.8.2, as used in Xen and possibly other products, allows local users to trigger a heap-based buffer overflow via certain register values that bypass sanity checks, aka QEMU NE2000 "receive" integer signedness error. NOTE: this identifier wa...