Double free

The IRQ setup in Xen 4.2.x and 4.3.x, when using device passthrough and configured to support a large number of CPUs, frees certain memory that may still be intended for use, which allows local guest administrators to cause a denial of service memory corruption and hypervisor crash and possibly...

Out-of-memory condition yielding memory corruption during IRQ setup

ISSUE DESCRIPTION When setting up the IRQ for a passed through physical device, a flaw in the error handling could result in a memory allocation being used after it is freed, and then freed a second time. This would typically result in memory corruption. IMPACT Malicious guest administrators can...

SuSE 11.3 Security Update : Linux kernel (SAT Patch Numbers 8524 / 8525 / 8528)

The SUSE Linux Enterprise 11 Service Pack 3 kernel was updated to version 3.0.101 and also includes various other bug and security fixes. The following features have been added : - Drivers: hv: Support handling multiple VMBUS versions FATE314665. - Drivers: hv: Save and export negotiated vmbus...

CVE-2013-1919

Xen 4.2.x and 4.1.x does not properly restrict access to IRQs, which allows local stub domain clients to gain access to IRQs and cause a denial of service via vectors related to "passed-through IRQs or PCI devices."...

CVE-2013-1919

Xen 4.2.x and 4.1.x does not properly restrict access to IRQs, which allows local stub domain clients to gain access to IRQs and cause a denial of service via vectors related to "passed-through IRQs or PCI devices."...

Debian DSA-2662-1 : xen - several vulnerabilities

Multiple vulnerabilities have been discovered in the Xen hypervisor. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2013-1917 The SYSENTER instruction can be used by PV guests to accelerate system call processing. This instruction, however, leaves the...

Several access permission issues with IRQs for unprivileged guests

ISSUE DESCRIPTION Various IRQ related access control operations may not have the intended effect, thus potentially permitting a stub domain to grant its client domain access to an IRQ it doesn't have access to itself. IMPACT Malicious or buggy stub domains kernels can mount a denial of service...

Debian Security Advisory DSA 2662-1 (xen - several vulnerabilities)

Multiple vulnerabilities have been discovered in the Xen hypervisor. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2013-1917 The SYSENTER instruction can be used by PV guests to accelerate system call processing. This instruction, however, leaves the EFLA...

kernel security and bug fix update

kernel 2.6.18-348.2.1 - misc tainted flags, fix buffer size Prarit Bhargava 905829 901547 - net be2net: fix unconditionally returning IRQHANDLED in INTx Ivan Vecera 884704 878316 - net be2net: fix INTx ISR for interrupt behaviour on BE2 Ivan Vecera 884704 878316 - net be2net: fix a possible...

DEBIAN-CVE-2012-2137

Buffer overflow in virt/kvm/irqcomm.c in the KVM subsystem in the Linux kernel before 3.2.24 allows local users to cause a denial of service crash and possibly execute arbitrary code via vectors related to Message Signaled Interrupts MSI, irq routing entries, and an incorrect check by the...

Buffer overflow

Buffer overflow in virt/kvm/irqcomm.c in the KVM subsystem in the Linux kernel before 3.2.24 allows local users to cause a denial of service crash and possibly execute arbitrary code via vectors related to Message Signaled Interrupts MSI, irq routing entries, and an incorrect check by the...

CVE-2012-2137

Buffer overflow in virt/kvm/irqcomm.c in the KVM subsystem in the Linux kernel before 3.2.24 allows local users to cause a denial of service crash and possibly execute arbitrary code via vectors related to Message Signaled Interrupts MSI, irq routing entries, and an incorrect check by the...

CentOS 5 : kernel (CESA-2012:1540)

Updated kernel packages that fix multiple security issues, two bugs, and add two enhancements are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System CVSS base scores, which...

sos security, bug fix, and enhancement update

2.2-29.0.1.el6 - Direct traceroute to linux.oracle.com John Haxby orabug 11713272 - Disable --upload option as it will not work with Oracle support - Check oraclelinux-release instead of redhat-release to get OS version John Haxby bug 11681869 - Remove RH ftp URL and support email - add...

kernel: kvm: buffer overflow in kvm_set_irq()

Buffer overflow in virt/kvm/irqcomm.c in the KVM subsystem in the Linux kernel before 3.2.24 allows local users to cause a denial of service crash and possibly execute arbitrary code via vectors related to Message Signaled Interrupts MSI, irq routing entries, and an incorrect check by the...

CVE-2012-2137

Buffer overflow in virt/kvm/irqcomm.c in the KVM subsystem in the Linux kernel before 3.2.24 allows local users to cause a denial of service crash and possibly execute arbitrary code via vectors related to Message Signaled Interrupts MSI, irq routing entries, and an incorrect check by the...

UBUNTU-CVE-2012-2137

Buffer overflow in virt/kvm/irqcomm.c in the KVM subsystem in the Linux kernel before 3.2.24 allows local users to cause a denial of service crash and possibly execute arbitrary code via vectors related to Message Signaled Interrupts MSI, irq routing entries, and an incorrect check by the...

kernel: kvm: irqchip_in_kernel() and vcpu->arch.apic inconsistency

The KVM implementation in the Linux kernel before 3.3.6 allows host OS users to cause a denial of service NULL pointer dereference and host OS crash by making a KVMCREATEIRQCHIP ioctl call after a virtual CPU already exists...

Linux kernel 2.6.x KVM create_pit_timer()函数本地拒绝服务漏洞

BUGTRAQ ID: 51172 CVE ID: CVE-2011-4622 Linux是自由电脑操作系统内核。 Linux Kernel在createpittimer的实现上存在本地拒绝服务漏洞，KVM 83的arch/x86/kvm/i8254.c中的createpittimer函数在irqchip不可用时没有正确处理PIT IRQ，本地攻击者可利用定时器通过此漏洞造成内核崩溃，拒绝服务合法用户。 0 Linux kernel 2.6.x 厂商补丁： Linux ----- 目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： http://www.kernel.or...

Important: Red Hat Security Advisory: kvm security update

Updated kvm packages that fix two security issues are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity ratings, are availab...