cnvd-2015-06055
Vulnerability from cnvd
Title
QEMU 'vnc.c'拒绝服务漏洞
Description
QEMU是一款开源模拟器软件。 QEMU的VNC显示驱动程序存在整数溢出漏洞，漏洞位于vnc_client_read()及protocol_client_msg()中，客户端用户通过较大的CLIENT_CUT_TEXT消息，利用此漏洞可导致VNC驱动程序无限循环，造成QEMU进程崩溃。
Severity
中
Patch Name
QEMU 'vnc.c'拒绝服务漏洞的补丁
Patch Description
QEMU是一款开源模拟器软件。 QEMU的VNC显示驱动程序存在整数溢出漏洞，漏洞位于vnc_client_read()及protocol_client_msg()中，客户端用户通过较大的CLIENT_CUT_TEXT消息，利用此漏洞可导致VNC驱动程序无限循环，造成QEMU进程崩溃。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

用户可联系供应商获得补丁信息： http://fabrice.bellard.free.fr/qemu/

Reference
http://www.securityfocus.com/bid/76620
Impacted products
Name
QEMU QEMU 0
Show details on source website

To clipboard 

{
  "bids": {
    "bid": {
      "bidNumber": "76620"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-5239"
    }
  },
  "description": "QEMU\u662f\u4e00\u6b3e\u5f00\u6e90\u6a21\u62df\u5668\u8f6f\u4ef6\u3002\r\n\r\nQEMU\u7684VNC\u663e\u793a\u9a71\u52a8\u7a0b\u5e8f\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u6f0f\u6d1e\u4f4d\u4e8evnc_client_read()\u53caprotocol_client_msg()\u4e2d\uff0c\u5ba2\u6237\u7aef\u7528\u6237\u901a\u8fc7\u8f83\u5927\u7684CLIENT_CUT_TEXT\u6d88\u606f\uff0c\u5229\u7528\u6b64\u6f0f\u6d1e\u53ef\u5bfc\u81f4VNC\u9a71\u52a8\u7a0b\u5e8f\u65e0\u9650\u5faa\u73af\uff0c\u9020\u6210QEMU\u8fdb\u7a0b\u5d29\u6e83\u3002",
  "discovererName": "Peter Lieven",
  "formalWay": "\u7528\u6237\u53ef\u8054\u7cfb\u4f9b\u5e94\u5546\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttp://fabrice.bellard.free.fr/qemu/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-06055",
  "openTime": "2015-09-21",
  "patchDescription": "QEMU\u662f\u4e00\u6b3e\u5f00\u6e90\u6a21\u62df\u5668\u8f6f\u4ef6\u3002 \r\n\r\nQEMU\u7684VNC\u663e\u793a\u9a71\u52a8\u7a0b\u5e8f\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u6f0f\u6d1e\u4f4d\u4e8evnc_client_read()\u53caprotocol_client_msg()\u4e2d\uff0c\u5ba2\u6237\u7aef\u7528\u6237\u901a\u8fc7\u8f83\u5927\u7684CLIENT_CUT_TEXT\u6d88\u606f\uff0c\u5229\u7528\u6b64\u6f0f\u6d1e\u53ef\u5bfc\u81f4VNC\u9a71\u52a8\u7a0b\u5e8f\u65e0\u9650\u5faa\u73af\uff0c\u9020\u6210QEMU\u8fdb\u7a0b\u5d29\u6e83\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": "QEMU \u0027vnc.c\u0027\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "QEMU QEMU 0"
  },
  "referenceLink": "http://www.securityfocus.com/bid/76620",
  "serverity": "\u4e2d",
  "submitTime": "2015-09-18",
  "title": "QEMU \u0027vnc.c\u0027\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}


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