Scientific Linux Security Update : xen on SL5.x i386/x86_64

Note: Troy Dawson has tested this update on a machine hosting both paravirtualized and fully virtualized machines, both 32 bit and 64 bit. He did the update while all the machines were running, none of them had any problems. He also tried stopping, starting, and rebooting several of the machines...

Scientific Linux Security Update : Virtio on SL3.x i386/x86_64

This new package provides signed, para-virtualized block and network drivers for Scientific Linux 3 as a KVM virtualized guest. Users may see various warnings during package installation, including : - Different versions of package are already installed. Older versions of the package may cause...

Scientific Linux Security Update : xen on SL5.x i386/x86_64

CVE-2009-3525 Xen: PyGrub missing support for password configuration command The pyGrub boot loader did not honor the 'password' option in the grub.conf file for para-virtualized guests. Users with access to a guest's console could use this flaw to bypass intended access restrictions and boot the...

Scientific Linux Security Update : tzdata on SL3.x, SL4.x, SL5.x i386/x86_64

This updated package addresses the following changes to Daylight Savings Time DST observations : - as of June 24, 2008, for Brazil, all of Acre and parts of Amazonas that used UTC+5, now use UTC+4. Previously, only parts of Para used UTC+3. Now, all of Para use UTC+3. - Mauritius is introducing D...

kernel: x86-64: avoid sysret to non-canonical address

It was found that the Xen hypervisor implementation as shipped with Red Hat Enterprise Linux 5 did not properly restrict the syscall return addresses in the sysret return path to canonical addresses. An unprivileged user in a 64-bit para-virtualized guest, that is running on a 64-bit host that ha...

CentOS Update for xen CESA-2009:1472 centos5 i386

Check for the Version of xen OpenVAS Vulnerability Test CentOS Update for xen CESA-2009:1472 centos5 i386 Authors: System Generated Check Copyright: Copyright c 2011 Greenbone Networks GmbH, http://www.greenbone.net This program is free software; you can redistribute it and/or modify it under the...

CentOS Update for xen CESA-2009:1472 centos5 i386

The remote host is missing an update for the SPDX-FileCopyrightText: 2011 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 scriptxrefname:"URL",...

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...

Design/Logic Flaw

The pyGrub boot loader in Xen 3.0.3, 3.3.0, and Xen-3.3.1 does not support the password option in grub.conf for para-virtualized guests, which allows attackers with access to the para-virtualized guest console to boot the guest or modify the guest's kernel boot parameters without providing the...

CVE-2009-3525

The pyGrub boot loader in Xen 3.0.3, 3.3.0, and Xen-3.3.1 does not support the password option in grub.conf for para-virtualized guests, which allows attackers with access to the para-virtualized guest console to boot the guest or modify the guest's kernel boot parameters without providing the...

CVE-2009-3525

The pyGrub boot loader in Xen 3.0.3, 3.3.0, and Xen-3.3.1 does not support the password option in grub.conf for para-virtualized guests, which allows attackers with access to the para-virtualized guest console to boot the guest or modify the guest's kernel boot parameters without providing the...

CVE-2009-3525: Undefined Security Weakness

The pyGrub boot loader in Xen 3.0.3, 3.3.0, and Xen-3.3.1 does not support the password option in grub.conf for para-virtualized guests, which allows attackers with access to the para-virtualized guest console to boot the guest or modify the guest's kernel boot parameters without providing the...

Xen: PyGrub missing support for password configuration command

The pyGrub boot loader in Xen 3.0.3, 3.3.0, and Xen-3.3.1 does not support the password option in grub.conf for para-virtualized guests, which allows attackers with access to the para-virtualized guest console to boot the guest or modify the guest's kernel boot parameters without providing the...

kernel security update

CentOS Errata and Security Advisory CESA-2009:1193 Updated kernel packages that fix several security issues and several bugs 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 kernel packages...

RHEL 5 : kernel (RHSA-2009:1193)

Updated kernel packages that fix several security issues and several bugs 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 kernel packages contain the Linux kernel, the core of any Linux...

CVE-2008-1952

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...

CVE-2008-1952

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...

CVE-2008-1952: Improper Restriction of Operations within the Bounds of a Memory Buffer

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...

CVE-2008-1944

Buffer overflow in the backend framebuffer of XenSource Xen Para-Virtualized Framebuffer PVFB Message 3.0 through 3.0.3 allows local users to cause a denial of service SDL crash and possibly execute arbitrary code via "bogus screen updates," related to missing validation of the "format of message...

CVE-2008-1943: Improper Restriction of Operations within the Bounds of a Memory Buffer

Buffer overflow in the backend of XenSource Xen Para Virtualized Frame Buffer PVFB 3.0 through 3.1.2 allows local users to cause a denial of service crash and possibly execute arbitrary code via a crafted description of a shared framebuffer...