cnvd-2016-09982
Vulnerability from cnvd
Title: OpenSSL存在远程匿名拒绝服务漏洞（SSL Death Alert）
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。
OpenSSL存在远程匿名拒绝服务漏洞。OpenSSL针对SSL/TLS协议握手过程的实现中，允许客户端重复发送打包的"SSL3_RT_ALERT"->"SSL3_AL_WARNING"类型明文未定义警告包，且OpenSSL在实现中遇到未定义警告包时仍选择忽略并继续处理接下来的通信内容（如果有的话）。攻击者利用漏洞可在一个消息中打包大量未定义类型警告包，使服务或进程陷入无意义的循环，从而导致占用服务或进程100%的CPU使用率。
Severity: 高
Patch Name: OpenSSL存在SSL Death Alert远程匿名拒绝服务漏洞的补丁
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存在SSL Death Alert远程匿名拒绝服务漏洞。由于在OpenSSL针对SSL/TLS协议握手过程的实现中，允许客户端重复发送打包的 "SSL3_RT_ALERT" -> "SSL3_AL_WARNING" 类型明文未定义警告包，且OpenSSL在实现中遇到未定义警告包时仍选择忽略并继续处理接下来的通信内容（如果有的话）。攻击者利用漏洞可在一个消息中打包大量未定义类型警告包，使服务或进程陷入无意义的循环，从而导致占用掉服务或进程100%的CPU使用率。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:
用户可关注厂商主页，将软件升级至1.1.0b、1.0.2j版本： https://www.openssl.org/source/
Reference: http://www.securityfocus.com/bid/93841
Impacted products
| Name | ['OpenSSL OpenSSL 1.1.0', 'OpenSSL OpenSSL OpenSSL 1.0.2 - 1.0.2h', 'OpenSSL OpenSSL OpenSSL All 1.0.1', 'OpenSSL OpenSSL OpenSSL All 0.9.8'] |
|---|
{
"bids": {
"bid": {
"bidNumber": "93841"
}
},
"cves": {
"cve": {
"cveNumber": "CVE-2016-8610"
}
},
"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\u3002\r\n\r\nOpenSSL\u5b58\u5728\u8fdc\u7a0b\u533f\u540d\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002OpenSSL\u9488\u5bf9SSL/TLS\u534f\u8bae\u63e1\u624b\u8fc7\u7a0b\u7684\u5b9e\u73b0\u4e2d\uff0c\u5141\u8bb8\u5ba2\u6237\u7aef\u91cd\u590d\u53d1\u9001\u6253\u5305\u7684\"SSL3_RT_ALERT\"-\u003e\"SSL3_AL_WARNING\"\u7c7b\u578b\u660e\u6587\u672a\u5b9a\u4e49\u8b66\u544a\u5305\uff0c\u4e14OpenSSL\u5728\u5b9e\u73b0\u4e2d\u9047\u5230\u672a\u5b9a\u4e49\u8b66\u544a\u5305\u65f6\u4ecd\u9009\u62e9\u5ffd\u7565\u5e76\u7ee7\u7eed\u5904\u7406\u63a5\u4e0b\u6765\u7684\u901a\u4fe1\u5185\u5bb9\uff08\u5982\u679c\u6709\u7684\u8bdd\uff09\u3002\u653b\u51fb\u8005\u5229\u7528\u6f0f\u6d1e\u53ef\u5728\u4e00\u4e2a\u6d88\u606f\u4e2d\u6253\u5305\u5927\u91cf\u672a\u5b9a\u4e49\u7c7b\u578b\u8b66\u544a\u5305\uff0c\u4f7f\u670d\u52a1\u6216\u8fdb\u7a0b\u9677\u5165\u65e0\u610f\u4e49\u7684\u5faa\u73af\uff0c\u4ece\u800c\u5bfc\u81f4\u5360\u7528\u670d\u52a1\u6216\u8fdb\u7a0b100%\u7684CPU\u4f7f\u7528\u7387\u3002",
"discovererName": "\u77f3\u78ca",
"formalWay": "\u7528\u6237\u53ef\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff0c\u5c06\u8f6f\u4ef6\u5347\u7ea7\u81f31.1.0b\u30011.0.2j\u7248\u672c\uff1a\r\nhttps://www.openssl.org/source/",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2016-09982",
"openTime": "2016-10-25",
"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\u5b58\u5728SSL Death Alert\u8fdc\u7a0b\u533f\u540d\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u7531\u4e8e\u5728OpenSSL\u9488\u5bf9SSL/TLS\u534f\u8bae\u63e1\u624b\u8fc7\u7a0b\u7684\u5b9e\u73b0\u4e2d\uff0c\u5141\u8bb8\u5ba2\u6237\u7aef\u91cd\u590d\u53d1\u9001\u6253\u5305\u7684 \"SSL3_RT_ALERT\" -\u003e \"SSL3_AL_WARNING\" \u7c7b\u578b\u660e\u6587\u672a\u5b9a\u4e49\u8b66\u544a\u5305\uff0c\u4e14OpenSSL\u5728\u5b9e\u73b0\u4e2d\u9047\u5230\u672a\u5b9a\u4e49\u8b66\u544a\u5305\u65f6\u4ecd\u9009\u62e9\u5ffd\u7565\u5e76\u7ee7\u7eed\u5904\u7406\u63a5\u4e0b\u6765\u7684\u901a\u4fe1\u5185\u5bb9\uff08\u5982\u679c\u6709\u7684\u8bdd\uff09\u3002\u653b\u51fb\u8005\u5229\u7528\u6f0f\u6d1e\u53ef\u5728\u4e00\u4e2a\u6d88\u606f\u4e2d\u6253\u5305\u5927\u91cf\u672a\u5b9a\u4e49\u7c7b\u578b\u8b66\u544a\u5305\uff0c\u4f7f\u670d\u52a1\u6216\u8fdb\u7a0b\u9677\u5165\u65e0\u610f\u4e49\u7684\u5faa\u73af\uff0c\u4ece\u800c\u5bfc\u81f4\u5360\u7528\u6389\u670d\u52a1\u6216\u8fdb\u7a0b100%\u7684CPU\u4f7f\u7528\u7387\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\u5b58\u5728SSL Death Alert\u8fdc\u7a0b\u533f\u540d\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
"products": {
"product": [
"OpenSSL OpenSSL 1.1.0",
"OpenSSL OpenSSL OpenSSL 1.0.2 - 1.0.2h",
"OpenSSL OpenSSL OpenSSL All 1.0.1",
"OpenSSL OpenSSL OpenSSL All 0.9.8"
]
},
"referenceLink": "http://www.securityfocus.com/bid/93841",
"serverity": "\u9ad8",
"submitTime": "2016-10-25",
"title": "OpenSSL\u5b58\u5728\u8fdc\u7a0b\u533f\u540d\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08SSL Death Alert\uff09"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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