SUSE SLES10 Security Update : Xen (SUSE-SU-2015:0744-1)

The Virtualization service XEN was updated to fix various bugs and security issues. The following security issues have been fixed : XSA-125: Long latency MMIO mapping operations were not preemptible. CVE-2015-2151: XSA-123: Instructions with register operands ignored eventual segment overrides...

SUSE SLED11 / SLES11 Security Update : Xen (SUSE-SU-2015:0747-1)

The Virtualization service XEN was updated to fix various bugs and security issues. The following security issues have been fixed : CVE-2015-2756: XSA-126: Unmediated PCI command register access in qemu could have lead to denial of service attacks against the host, if PCI cards are passed through...

DEBIAN-CVE-2015-2151

The x86 emulator in Xen 3.2.x through 4.5.x does not properly ignore segment overrides for instructions with register operands, which allows local guest users to obtain sensitive information, cause a denial of service memory corruption, or possibly execute arbitrary code via unspecified vectors...

Basic Integer Overflows

Introduction Basic Integer Overflow : In this paper we are going to describe two classes of programming bugs which can sometimes allow a malicious user to modify the execution path of an affected process. Both of these classes of bug work by causing variables to contain unexpected values, and so...