CNVD-2016-02676

Vulnerability from cnvd - Published: 2016-05-04
VLAI
Title
OpenSSL EBCDIC越界读漏洞
Description
OpenSSL是一个实现安全套接层和安全传输层协议的通用开源加密库，可支持多种加密算法，包括对称密码、哈希算法、安全散列算法等。 OpenSSL EBCDIC存在越界读漏洞。当程序使用EBCDIC系统X509_NAME_oneline（）函数，ASN1字符串超过1024字节可导致越界读，进而可导致在缓冲区返回任意堆栈的数据。
Severity
低
Patch Name
OpenSSL EBCDIC越界读漏洞的补丁
Patch Description
OpenSSL是一个实现安全套接层和安全传输层协议的通用开源加密库，可支持多种加密算法，包括对称密码、哈希算法、安全散列算法等。 OpenSSL EBCDIC存在越界读漏洞。当程序使用EBCDIC系统X509_NAME_oneline（）函数，ASN1字符串超过1024字节可导致越界读，进而可导致在缓冲区返回任意堆栈的数据。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

厂商已发布升级程序修复该漏洞，请及时更新下载： https://www.openssl.org/news/vulnerabilities.html

Reference
https://www.openssl.org/news/secadv/20160503.txt
Impacted products
Name
['Openssl Openssl 1.0.1', 'OpenSSL OpenSSL 1.0.2']
Show details on source website
To clipboard 

{
  "bids": {
    "bid": {
      "bidNumber": "89746"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-2176"
    }
  },
  "description": "OpenSSL\u662f\u4e00\u4e2a\u5b9e\u73b0\u5b89\u5168\u5957\u63a5\u5c42\u548c\u5b89\u5168\u4f20\u8f93\u5c42\u534f\u8bae\u7684\u901a\u7528\u5f00\u6e90\u52a0\u5bc6\u5e93\uff0c\u53ef\u652f\u6301\u591a\u79cd\u52a0\u5bc6\u7b97\u6cd5\uff0c\u5305\u62ec\u5bf9\u79f0\u5bc6\u7801\u3001\u54c8\u5e0c\u7b97\u6cd5\u3001\u5b89\u5168\u6563\u5217\u7b97\u6cd5\u7b49\u3002\r\n\r\nOpenSSL EBCDIC\u5b58\u5728\u8d8a\u754c\u8bfb\u6f0f\u6d1e\u3002\u5f53\u7a0b\u5e8f\u4f7f\u7528EBCDIC\u7cfb\u7edfX509_NAME_oneline\uff08\uff09\u51fd\u6570\uff0cASN1\u5b57\u7b26\u4e32\u8d85\u8fc71024\u5b57\u8282\u53ef\u5bfc\u81f4\u8d8a\u754c\u8bfb\uff0c\u8fdb\u800c\u53ef\u5bfc\u81f4\u5728\u7f13\u51b2\u533a\u8fd4\u56de\u4efb\u610f\u5806\u6808\u7684\u6570\u636e\u3002",
  "discovererName": "Guido Vranken",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u7a0b\u5e8f\u4fee\u590d\u8be5\u6f0f\u6d1e\uff0c\u8bf7\u53ca\u65f6\u66f4\u65b0\u4e0b\u8f7d\uff1a\r\nhttps://www.openssl.org/news/vulnerabilities.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-02676",
  "openTime": "2016-05-04",
  "patchDescription": "OpenSSL\u662f\u4e00\u4e2a\u5b9e\u73b0\u5b89\u5168\u5957\u63a5\u5c42\u548c\u5b89\u5168\u4f20\u8f93\u5c42\u534f\u8bae\u7684\u901a\u7528\u5f00\u6e90\u52a0\u5bc6\u5e93\uff0c\u53ef\u652f\u6301\u591a\u79cd\u52a0\u5bc6\u7b97\u6cd5\uff0c\u5305\u62ec\u5bf9\u79f0\u5bc6\u7801\u3001\u54c8\u5e0c\u7b97\u6cd5\u3001\u5b89\u5168\u6563\u5217\u7b97\u6cd5\u7b49\u3002\r\n\r\nOpenSSL EBCDIC\u5b58\u5728\u8d8a\u754c\u8bfb\u6f0f\u6d1e\u3002\u5f53\u7a0b\u5e8f\u4f7f\u7528EBCDIC\u7cfb\u7edfX509_NAME_oneline\uff08\uff09\u51fd\u6570\uff0cASN1\u5b57\u7b26\u4e32\u8d85\u8fc71024\u5b57\u8282\u53ef\u5bfc\u81f4\u8d8a\u754c\u8bfb\uff0c\u8fdb\u800c\u53ef\u5bfc\u81f4\u5728\u7f13\u51b2\u533a\u8fd4\u56de\u4efb\u610f\u5806\u6808\u7684\u6570\u636e\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 EBCDIC\u8d8a\u754c\u8bfb\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Openssl Openssl 1.0.1",
      "OpenSSL  OpenSSL  1.0.2"
    ]
  },
  "referenceLink": "https://www.openssl.org/news/secadv/20160503.txt",
  "serverity": "\u4f4e",
  "submitTime": "2016-05-04",
  "title": "OpenSSL EBCDIC\u8d8a\u754c\u8bfb\u6f0f\u6d1e"
}



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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.


Detection rules are retrieved from Rulezet.


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.