198 matches found
openSUSE Security Update : xen (openSUSE-2016-35)
This update for xen fixes the following security issues : - CVE-2015-8568 CVE-2015-8567: xen: qemu: net: vmxnet3: host memory leakage boo959387 - CVE-2015-8550: xen: paravirtualized drivers incautious about shared memory contents XSA-155, boo957988 - CVE-2015-8558: xen: qemu: usb: infinite loop i...
The vulnerability of Xen hypervisors, which allows a malicious actor to trigger a service failure
The vulnerability of the libxl toolstack library in Xen hypervisors lies in the improper implementation of the file mapping procedures used by kernels and disks during initial initialization when working with domains within the same process. Exploiting this vulnerability can allow a malicious act...
FreeBSD : xen-tools -- libxl leak of pv kernel and initrd on error (5d1d4473-b40d-11e5-9728-002590263bf5)
The Xen Project reports : When constructing a guest which is configured to use a PV bootloader which runs as a userspace process in the toolstack domain e.g. pygrub libxl creates a mapping of the files to be used as kernel and initial ramdisk when building the guest domain. However if building th...
Xen libxl toolstack library denial of service vulnerability
Xen is an open source virtual machine monitor product developed at the University of Cambridge in the United Kingdom. The Xen ibxl toolstack library fails to properly release the file mappings made for the kernel and initial virtual disks when managing multiple domains in the same process, allowi...
DEBIAN-CVE-2015-8341
The libxl toolstack library in Xen 4.1.x through 4.6.x does not properly release mappings of files used as kernels and initial ramdisks when managing multiple domains in the same process, which allows attackers to cause a denial of service memory and disk consumption by starting domains...
CVE-2015-8341
The libxl toolstack library in Xen 4.1.x through 4.6.x does not properly release mappings of files used as kernels and initial ramdisks when managing multiple domains in the same process, which allows attackers to cause a denial of service memory and disk consumption by starting domains...
CVE-2015-8341
The libxl toolstack library in Xen 4.1.x through 4.6.x does not properly release mappings of files used as kernels and initial ramdisks when managing multiple domains in the same process, which allows attackers to cause a denial of service memory and disk consumption by starting domains...
UBUNTU-CVE-2015-8341
The libxl toolstack library in Xen 4.1.x through 4.6.x does not properly release mappings of files used as kernels and initial ramdisks when managing multiple domains in the same process, which allows attackers to cause a denial of service memory and disk consumption by starting domains...
Design/Logic Flaw
The libxl toolstack library in Xen 4.1.x through 4.6.x does not properly release mappings of files used as kernels and initial ramdisks when managing multiple domains in the same process, which allows attackers to cause a denial of service memory and disk consumption by starting domains...
CVE-2015-8341
CVE-2015-8341 affects the Xen libxl toolstack in Xen 4.1.x–4.6.x, where mappings for pv kernel/initrd may not be properly released when managing multiple domains in one process. This can allow a local attacker to cause DoS via memory and disk consumption by starting domains. Connected advisories ...
CVE-2015-8341
The libxl toolstack library in Xen 4.1.x through 4.6.x does not properly release mappings of files used as kernels and initial ramdisks when managing multiple domains in the same process, which allows attackers to cause a denial of service memory and disk consumption by starting domains...
openSUSE Security Update : xen (openSUSE-2015-893)
This update fixes the following security issues : - bsc947165 - CVE-2015-7311: xen: libxl fails to honour readonly flag on disks with qemu-xen xsa-142 - bsc954405 - CVE-2015-8104: Xen: guest to host DoS by triggering an infinite loop in microcode via DB exception - bsc954018 - CVE-2015-5307: xen:...
libxl leak of pv kernel and initrd on error
ISSUE DESCRIPTION When constructing a guest which is configured to use a PV bootloader which runs as a userspace process in the toolstack domain e.g. pygrub libxl creates a mapping of the files to be used as kernel and initial ramdisk when building the guest domain. However if building the domain...
FreeBSD : xen-tools -- libxl fails to honour readonly flag on disks with qemu-xen (301b04d7-881c-11e5-ab94-002590263bf5)
"The Xen Project reports : Callers of libxl can specify that a disk should be read-only to the guest. However, there is no code in libxl to pass this information to qemu-xen the upstream-based qemu %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text and package checks in thi...
SUSE SLED11 / SLES11 Security Update : xen (SUSE-SU-2015:1853-1)
xen was updated to fix nine security issues. These security issues were fixed : - CVE-2015-4037: The slirpsmb function in net/slirp.c created temporary files with predictable names, which allowed local users to cause a denial of service instantiation failure by creating /tmp/qemu-smb.- files befo...
DEBIAN-CVE-2015-7972
The 1 libxlsetmemorytarget function in tools/libxl/libxl.c and 2 libxlbuildpost function in tools/libxl/libxldom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand PoD system, which allows local HVM guest users to cause a denial of service...
CVE-2015-7972
The 1 libxlsetmemorytarget function in tools/libxl/libxl.c and 2 libxlbuildpost function in tools/libxl/libxldom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand PoD system, which allows local HVM guest users to cause a denial of service...
UBUNTU-CVE-2015-7972
The 1 libxlsetmemorytarget function in tools/libxl/libxl.c and 2 libxlbuildpost function in tools/libxl/libxldom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand PoD system, which allows local HVM guest users to cause a denial of service...
CVE-2015-7972
The 1 libxlsetmemorytarget function in tools/libxl/libxl.c and 2 libxlbuildpost function in tools/libxl/libxldom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand PoD system, which allows local HVM guest users to cause a denial of service...
x86: populate-on-demand balloon size inaccuracy can crash guests
ISSUE DESCRIPTION The design of the memory populate-on-demand PoD system requires that a guest's memory ballooning driver reach its memory reduction target. The target is not entirely well-defined in terms of the information visible to the appropriate parts of the system, so some unknown set of...