cnvd-2016-08123
Vulnerability from cnvd
Title
OpenSSL OCSP状态请求扩展内存耗尽漏洞
Description
OpenSSL是一种开放源码的SSL实现，用来实现网络通信的高强度加密，现在被广泛地用于各种网络应用程序中。 OpenSSL 1.1.0a、1.0.2i、1.0.1u之前版本在处理恶意客户不断发送的大量OCSP状态请求扩展时，服务器会因内存耗尽而最终拒绝服务。默认配置的服务器即使不支持OCSP，也会导致拒绝服务。使用"no-ocsp"构建时间选项的build不受影响。默认配置的服务器，使用的OpenSSL 1.0.1g之前版本，不受影响，除非应用支持启用OCSP stapling。
Severity
中
Patch Name
OpenSSL OCSP状态请求扩展内存耗尽漏洞的补丁
Patch Description
OpenSSL是一种开放源码的SSL实现，用来实现网络通信的高强度加密，现在被广泛地用于各种网络应用程序中。 OpenSSL 1.1.0a、1.0.2i、1.0.1u之前版本在处理恶意客户不断发送的大量OCSP状态请求扩展时，服务器会因内存耗尽而最终拒绝服务。默认配置的服务器即使不支持OCSP，也会导致拒绝服务。使用"no-ocsp"构建时间选项的build不受影响。默认配置的服务器，使用的OpenSSL 1.0.1g之前版本，不受影响，除非应用支持启用OCSP stapling。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

用户可参考如下供应商提供的安全公告获得补丁信息： https://www.openssl.org/news/secadv/20160922.txt

Reference
https://www.openssl.org/news/secadv/20160922.txt http://www.securityfocus.com/bid/93150 http://www.securityweek.com/openssl-patch-low-severity-issue-creates-critical-flaw
Impacted products
Name
['OpenSSL OpenSSL <1.1.0a', 'OpenSSL OpenSSL <1.0.2i', 'OpenSSL OpenSSL <1.0.1u']
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{
  "bids": {
    "bid": {
      "bidNumber": "93150"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-6304"
    }
  },
  "description": "OpenSSL\u662f\u4e00\u79cd\u5f00\u653e\u6e90\u7801\u7684SSL\u5b9e\u73b0\uff0c\u7528\u6765\u5b9e\u73b0\u7f51\u7edc\u901a\u4fe1\u7684\u9ad8\u5f3a\u5ea6\u52a0\u5bc6\uff0c\u73b0\u5728\u88ab\u5e7f\u6cdb\u5730\u7528\u4e8e\u5404\u79cd\u7f51\u7edc\u5e94\u7528\u7a0b\u5e8f\u4e2d\u3002\r\n\r\nOpenSSL 1.1.0a\u30011.0.2i\u30011.0.1u\u4e4b\u524d\u7248\u672c\u5728\u5904\u7406\u6076\u610f\u5ba2\u6237\u4e0d\u65ad\u53d1\u9001\u7684\u5927\u91cfOCSP\u72b6\u6001\u8bf7\u6c42\u6269\u5c55\u65f6\uff0c\u670d\u52a1\u5668\u4f1a\u56e0\u5185\u5b58\u8017\u5c3d\u800c\u6700\u7ec8\u62d2\u7edd\u670d\u52a1\u3002\u9ed8\u8ba4\u914d\u7f6e\u7684\u670d\u52a1\u5668\u5373\u4f7f\u4e0d\u652f\u6301OCSP\uff0c\u4e5f\u4f1a\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002\u4f7f\u7528\"no-ocsp\"\u6784\u5efa\u65f6\u95f4\u9009\u9879\u7684build\u4e0d\u53d7\u5f71\u54cd\u3002\u9ed8\u8ba4\u914d\u7f6e\u7684\u670d\u52a1\u5668\uff0c\u4f7f\u7528\u7684OpenSSL 1.0.1g\u4e4b\u524d\u7248\u672c\uff0c\u4e0d\u53d7\u5f71\u54cd\uff0c\u9664\u975e\u5e94\u7528\u652f\u6301\u542f\u7528OCSP stapling\u3002",
  "discovererName": "Shi Lei",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u4f9b\u5e94\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttps://www.openssl.org/news/secadv/20160922.txt",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-08123",
  "openTime": "2016-09-27",
  "patchDescription": "OpenSSL\u662f\u4e00\u79cd\u5f00\u653e\u6e90\u7801\u7684SSL\u5b9e\u73b0\uff0c\u7528\u6765\u5b9e\u73b0\u7f51\u7edc\u901a\u4fe1\u7684\u9ad8\u5f3a\u5ea6\u52a0\u5bc6\uff0c\u73b0\u5728\u88ab\u5e7f\u6cdb\u5730\u7528\u4e8e\u5404\u79cd\u7f51\u7edc\u5e94\u7528\u7a0b\u5e8f\u4e2d\u3002\r\n\r\nOpenSSL 1.1.0a\u30011.0.2i\u30011.0.1u\u4e4b\u524d\u7248\u672c\u5728\u5904\u7406\u6076\u610f\u5ba2\u6237\u4e0d\u65ad\u53d1\u9001\u7684\u5927\u91cfOCSP\u72b6\u6001\u8bf7\u6c42\u6269\u5c55\u65f6\uff0c\u670d\u52a1\u5668\u4f1a\u56e0\u5185\u5b58\u8017\u5c3d\u800c\u6700\u7ec8\u62d2\u7edd\u670d\u52a1\u3002\u9ed8\u8ba4\u914d\u7f6e\u7684\u670d\u52a1\u5668\u5373\u4f7f\u4e0d\u652f\u6301OCSP\uff0c\u4e5f\u4f1a\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002\u4f7f\u7528\"no-ocsp\"\u6784\u5efa\u65f6\u95f4\u9009\u9879\u7684build\u4e0d\u53d7\u5f71\u54cd\u3002\u9ed8\u8ba4\u914d\u7f6e\u7684\u670d\u52a1\u5668\uff0c\u4f7f\u7528\u7684OpenSSL 1.0.1g\u4e4b\u524d\u7248\u672c\uff0c\u4e0d\u53d7\u5f71\u54cd\uff0c\u9664\u975e\u5e94\u7528\u652f\u6301\u542f\u7528OCSP stapling\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": "OpenSSL OCSP\u72b6\u6001\u8bf7\u6c42\u6269\u5c55\u5185\u5b58\u8017\u5c3d\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "OpenSSL OpenSSL \u003c1.1.0a",
      "OpenSSL OpenSSL  \u003c1.0.2i",
      "OpenSSL OpenSSL  \u003c1.0.1u"
    ]
  },
  "referenceLink": "https://www.openssl.org/news/secadv/20160922.txt\r\nhttp://www.securityfocus.com/bid/93150\r\nhttp://www.securityweek.com/openssl-patch-low-severity-issue-creates-critical-flaw",
  "serverity": "\u4e2d",
  "submitTime": "2016-09-23",
  "title": "OpenSSL OCSP\u72b6\u6001\u8bf7\u6c42\u6269\u5c55\u5185\u5b58\u8017\u5c3d\u6f0f\u6d1e"
}


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