CNVD-2016-09982
Vulnerability from cnvd - Published: 2016-10-25
VLAI
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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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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