cnvd-2015-02543
Vulnerability from cnvd
Title
Chrony内存破坏漏洞
Description
Chrony是用于计算机同步时间的工具，实现了NTP协议，并且可以同时作为客户端和服务器端程序，特别适合无网络连接环境中保持计算机时间准确性。 Chrony在cmdmon回复槽中存在未初始化指针。经过身份验证的攻击者可以用其他命令分配或解除分配内存，强制分配新回复槽，使chronyd对无效内存写回复。
Severity
中
Patch Name
Chrony内存破坏漏洞的补丁
Patch Description
Chrony是用于计算机同步时间的工具，实现了NTP协议，并且可以同时作为客户端和服务器端程序，特别适合无网络连接环境中保持计算机时间准确性。Chrony在cmdmon回复槽中存在未初始化指针。经过身份验证的攻击者可以用其他命令分配或解除分配内存，强制分配新回复槽，使chronyd对无效内存写回复。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： http://chrony.tuxfamily.org/News.html http://download.tuxfamily.org/chrony/chrony-1.31.1.tar.gz

Reference
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-1822
Impacted products
Name
Chrony Chrony <1.31.1
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-1822"
    }
  },
  "description": "Chrony\u662f\u7528\u4e8e\u8ba1\u7b97\u673a\u540c\u6b65\u65f6\u95f4\u7684\u5de5\u5177\uff0c\u5b9e\u73b0\u4e86NTP\u534f\u8bae\uff0c\u5e76\u4e14\u53ef\u4ee5\u540c\u65f6\u4f5c\u4e3a\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u7a0b\u5e8f\uff0c\u7279\u522b\u9002\u5408\u65e0\u7f51\u7edc\u8fde\u63a5\u73af\u5883\u4e2d\u4fdd\u6301\u8ba1\u7b97\u673a\u65f6\u95f4\u51c6\u786e\u6027\u3002\r\n\r\nChrony\u5728cmdmon\u56de\u590d\u69fd\u4e2d\u5b58\u5728\u672a\u521d\u59cb\u5316\u6307\u9488\u3002\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u4ee5\u7528\u5176\u4ed6\u547d\u4ee4\u5206\u914d\u6216\u89e3\u9664\u5206\u914d\u5185\u5b58\uff0c\u5f3a\u5236\u5206\u914d\u65b0\u56de\u590d\u69fd\uff0c\u4f7fchronyd\u5bf9\u65e0\u6548\u5185\u5b58\u5199\u56de\u590d\u3002",
  "discovererName": "Miroslav Lichv\u00e1r",
  "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\nhttp://chrony.tuxfamily.org/News.html\r\nhttp://download.tuxfamily.org/chrony/chrony-1.31.1.tar.gz",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-02543",
  "openTime": "2015-04-20",
  "patchDescription": "Chrony\u662f\u7528\u4e8e\u8ba1\u7b97\u673a\u540c\u6b65\u65f6\u95f4\u7684\u5de5\u5177\uff0c\u5b9e\u73b0\u4e86NTP\u534f\u8bae\uff0c\u5e76\u4e14\u53ef\u4ee5\u540c\u65f6\u4f5c\u4e3a\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u7a0b\u5e8f\uff0c\u7279\u522b\u9002\u5408\u65e0\u7f51\u7edc\u8fde\u63a5\u73af\u5883\u4e2d\u4fdd\u6301\u8ba1\u7b97\u673a\u65f6\u95f4\u51c6\u786e\u6027\u3002Chrony\u5728cmdmon\u56de\u590d\u69fd\u4e2d\u5b58\u5728\u672a\u521d\u59cb\u5316\u6307\u9488\u3002\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u4ee5\u7528\u5176\u4ed6\u547d\u4ee4\u5206\u914d\u6216\u89e3\u9664\u5206\u914d\u5185\u5b58\uff0c\u5f3a\u5236\u5206\u914d\u65b0\u56de\u590d\u69fd\uff0c\u4f7fchronyd\u5bf9\u65e0\u6548\u5185\u5b58\u5199\u56de\u590d\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": "Chrony\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Chrony Chrony \u003c1.31.1"
  },
  "referenceLink": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-1822",
  "serverity": "\u4e2d",
  "submitTime": "2015-04-15",
  "title": "Chrony\u5185\u5b58\u7834\u574f\u6f0f\u6d1e"
}


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