BUGTRAQ ID: 28001 CNCAN ID:CNCAN-2008022802 KVM是一款内核虚拟机。 KVM相关的阻拦设备驱动存在安全问题,本地攻击者可以利用漏洞绕过本地安全,访问虚拟环境外的内存信息,也可以写任意主机内存地址使主机崩溃。 当阻拦设备由客户端提交读或写请求时,没有对请求是否属于后端支持范围内的进行任何检查,这允许客户端读、写QEMU中的任意内存地址,通过QEMU来控制系统,逃脱模拟和虚拟的限制。 RedHat Fedora 8 0 RedHat Fedora 7 0 Qumranet KVM 36 可参考如下安全公告获得补丁信息: <a href=https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00830.html target=_blank>https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00830.html</a> <a href=https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00850.html target=_blank>https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00850.html</a>
BUGTRAQ ID: 28001 CNCAN ID:CNCAN-2008022802 KVM是一款内核虚拟机。 KVM相关的阻拦设备驱动存在安全问题,本地攻击者可以利用漏洞绕过本地安全,访问虚拟环境外的内存信息,也可以写任意主机内存地址使主机崩溃。 当阻拦设备由客户端提交读或写请求时,没有对请求是否属于后端支持范围内的进行任何检查,这允许客户端读、写QEMU中的任意内存地址,通过QEMU来控制系统,逃脱模拟和虚拟的限制。 RedHat Fedora 8 0 RedHat Fedora 7 0 Qumranet KVM 36 可参考如下安全公告获得补丁信息: <a href=https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00830.html target=_blank>https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00830.html</a> <a href=https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00850.html target=_blank>https://www.redhat.com/archives/fedora-package-announce/2008-February/msg00850.html</a>