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CVE-2012-2121

EPSS 0.13% · P32
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I. Basic Information for CVE-2012-2121

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
The KVM implementation in the Linux kernel before 3.3.4 does not properly manage the relationships between memory slots and the iommu, which allows guest OS users to cause a denial of service (memory leak and host OS crash) by leveraging administrative access to the guest OS to conduct hotunplug and hotplug operations on devices.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel ‘KVM’ 权限许可和访问控制漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。NFSv4 implementation是其中的一个分布式文件系统协议。 Linux kernel 3.3.4之前版本的KVM实现中存在漏洞，该漏洞源于未妥善处理内存slots与iommu之间的关系。guest操作系统用户可利用管理员权限对guest操作系统的访问在设备上执行hotunplug与hotplug操作，导致拒绝服务（主机操作系统崩溃）。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

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II. Public POCs for CVE-2012-2121

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III. Intelligence Information for CVE-2012-2121

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Same Patch Batch · n/a · 2012-05-17 · 21 CVEs total

CVE-2012-1090Linux Kerne ‘cifs_lookup’ 权限许可和访问控制问题漏洞
CVE-2012-2319Linux kernel 权限许可和访问控制问题漏洞
CVE-2012-2123Linux kernel ‘security/commoncap.c’ 权限许可和访问控制问题漏洞
CVE-2012-1601Linux Kernel ‘KVM_CREATE_IRQCHIP ioctl’ 资源管理错误漏洞
CVE-2012-1179Linux Kernel ‘KVM’ 权限许可和访问控制漏洞
CVE-2011-4611Linux kernel ‘perf_event_interrupt’ 整数溢出漏洞
CVE-2011-4326Linux kernel 资源管理错误漏洞
CVE-2011-4131Linux Kernel ‘NFSv4’ 缓冲区错误漏洞
CVE-2012-1146Linux Kernel ‘mem_cgroup_usage_unregister_event’ 拒绝服务漏洞
CVE-2012-1097Linux Kernel ‘regset’ 拒绝服务漏洞
CVE-2011-3637Linux Kernel ‘m_stop’ 输入验证错误漏洞
CVE-2012-0879Linux Kernel ‘I/O’ 输入验证错误漏洞
CVE-2012-0207Linux Kernel ‘igmp_heard_query’ 资源管理错误漏洞
CVE-2012-0058Linux Kernel ‘kiocb_batch_free’ 资源管理错误漏洞
CVE-2012-0044Linux kernel 输入验证错误漏洞
CVE-2012-0038Linux Kernel ‘xfs_acl_from_disk’ 整数溢出漏洞
CVE-2011-4621Linux Kernel拒绝服务漏洞
CVE-2011-4594Linux Kernel ‘net/socket.c’ 拒绝服务漏洞
CVE-2011-4112Linux Kernel ‘IFF_TX_SKB_SHARING’ 权限许可和访问控制问题漏洞
CVE-2011-4097Linux kernel 输入验证错误漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

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