CNVD-2015-02173

Vulnerability from cnvd - Published: 2015-04-07
VLAI Severity ?
Title
GnuTLS libtasn1 '_asn1_ltostr()' DER解码缓冲区溢出漏洞
Description
GnuTLS是一款用于实现TLS加密协议的函数库。 GnuTLS libtasn1 4.4之前版本在"_asn1_ltostr()"函数(lib/parser_aux.c)的实现上存在栈缓冲区溢出漏洞，允许攻击者利用此漏洞可执行任意代码。
Severity
高
Patch Name
GnuTLS libtasn1 '_asn1_ltostr()' DER解码缓冲区溢出漏洞的补丁
Patch Description
GnuTLS是一款用于实现TLS加密协议的函数库。 GnuTLS libtasn1 4.4之前版本在"_asn1_ltostr()"函数(lib/parser_aux.c)的实现上存在栈缓冲区溢出漏洞，允许攻击者利用此漏洞可执行任意代码。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

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： https://www.gnu.org/software/libtasn1/

Reference
http://secunia.com/advisories/63482/ http://lists.gnu.org/archive/html/help-libtasn1/2015-03/msg00002.html
Impacted products
Name
Gnutls libtasn1 < 4.4
Show details on source website
To clipboard 

{
  "description": "GnuTLS\u662f\u4e00\u6b3e\u7528\u4e8e\u5b9e\u73b0TLS\u52a0\u5bc6\u534f\u8bae\u7684\u51fd\u6570\u5e93\u3002\r\n\r\nGnuTLS libtasn1 4.4\u4e4b\u524d\u7248\u672c\u5728\"_asn1_ltostr()\"\u51fd\u6570(lib/parser_aux.c)\u7684\u5b9e\u73b0\u4e0a\u5b58\u5728\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u5141\u8bb8\u653b\u51fb\u8005\u5229\u7528\u6b64\u6f0f\u6d1e\u53ef\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "discovererName": "Hanno B\u00f6ck",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u8fd9\u4e2a\u5b89\u5168\u95ee\u9898\uff0c\u8bf7\u5230\u5382\u5546\u7684\u4e3b\u9875\u4e0b\u8f7d\uff1a\r\nhttps://www.gnu.org/software/libtasn1/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-02173",
  "openTime": "2015-04-07",
  "patchDescription": "GnuTLS\u662f\u4e00\u6b3e\u7528\u4e8e\u5b9e\u73b0TLS\u52a0\u5bc6\u534f\u8bae\u7684\u51fd\u6570\u5e93\u3002\r\n\r\nGnuTLS libtasn1 4.4\u4e4b\u524d\u7248\u672c\u5728\"_asn1_ltostr()\"\u51fd\u6570(lib/parser_aux.c)\u7684\u5b9e\u73b0\u4e0a\u5b58\u5728\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u5141\u8bb8\u653b\u51fb\u8005\u5229\u7528\u6b64\u6f0f\u6d1e\u53ef\u6267\u884c\u4efb\u610f\u4ee3\u7801\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": "GnuTLS libtasn1 \u0027_asn1_ltostr()\u0027 DER\u89e3\u7801\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Gnutls libtasn1 \u003c 4.4"
  },
  "referenceLink": "http://secunia.com/advisories/63482/\r\nhttp://lists.gnu.org/archive/html/help-libtasn1/2015-03/msg00002.html",
  "serverity": "\u9ad8",
  "submitTime": "2015-04-02",
  "title": "GnuTLS libtasn1 \u0027_asn1_ltostr()\u0027 DER\u89e3\u7801\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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