cnvd-2022-77501
Vulnerability from cnvd
Title
Linux kernel存在未明漏洞（CNVD-2022-77501）
Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在KVM的AMD嵌套虚拟化 (SVM) 中发现了一个缺陷。恶意L1来宾可能故意不拦截协作嵌套来宾(L2)的关闭，从而可能导致主机(L0)出现页面错误和内核恐慌。目前没有详细的漏洞细节提供。
Severity
中
Patch Name
Linux kernel存在未明漏洞（CNVD-2022-77501）的补丁
Patch Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在KVM的AMD嵌套虚拟化 (SVM) 中发现了一个缺陷。恶意L1来宾可能故意不拦截协作嵌套来宾(L2)的关闭，从而可能导致主机(L0)出现页面错误和内核恐慌。目前没有详细的漏洞细节提供。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。
Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接：
https://lore.kernel.org/lkml/20221020093055.224317-5-mlevitsk@redhat.com/T/

Reference
https://nvd.nist.gov/vuln/detail/CVE-2022-3344
Impacted products
Name
Linux Linux kernel <=6.0.3
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-3344",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-3344"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\n\nLinux kernel\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728KVM\u7684AMD\u5d4c\u5957\u865a\u62df\u5316 (SVM) \u4e2d\u53d1\u73b0\u4e86\u4e00\u4e2a\u7f3a\u9677\u3002\u6076\u610fL1\u6765\u5bbe\u53ef\u80fd\u6545\u610f\u4e0d\u62e6\u622a\u534f\u4f5c\u5d4c\u5957\u6765\u5bbe(L2)\u7684\u5173\u95ed\uff0c\u4ece\u800c\u53ef\u80fd\u5bfc\u81f4\u4e3b\u673a(L0)\u51fa\u73b0\u9875\u9762\u9519\u8bef\u548c\u5185\u6838\u6050\u614c\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a  \r\nhttps://lore.kernel.org/lkml/20221020093055.224317-5-mlevitsk@redhat.com/T/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-77501",
  "openTime": "2022-11-16",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728KVM\u7684AMD\u5d4c\u5957\u865a\u62df\u5316 (SVM) \u4e2d\u53d1\u73b0\u4e86\u4e00\u4e2a\u7f3a\u9677\u3002\u6076\u610fL1\u6765\u5bbe\u53ef\u80fd\u6545\u610f\u4e0d\u62e6\u622a\u534f\u4f5c\u5d4c\u5957\u6765\u5bbe(L2)\u7684\u5173\u95ed\uff0c\u4ece\u800c\u53ef\u80fd\u5bfc\u81f4\u4e3b\u673a(L0)\u51fa\u73b0\u9875\u9762\u9519\u8bef\u548c\u5185\u6838\u6050\u614c\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Linux kernel\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2022-77501\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel \u003c=6.0.3"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2022-3344",
  "serverity": "\u4e2d",
  "submitTime": "2022-11-14",
  "title": "Linux kernel\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2022-77501\uff09"
}


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