CVE:CVE-2013-2174
CNNVD:CNNVD-201306-456
Haxx curl是瑞典Haxx公司的一套利用URL语法在命令行下工作的文件传输工具，该工具支持文件上传和下载，并包含一个用于程序开发的libcurl（客户端URL传输库）。
cURL和libcurl 7.7至7.30.0版本中的lib/escape.c文件中的‘curl_easy_unescape’函数中存在基于堆的缓冲区溢出漏洞。远程攻击者可通过以%字符结尾的字符串，利用该漏洞造成拒绝服务（应用程序崩溃）或可能执行任意代码。
solution:Upgrade haxx curl to a higher version than 7.7,7.7.1,7.7.2,7.7.3,7.8,7.8.1,7.9,7.9.1,7.9.2,7.9.3,7.9.4,7.9.5,7.9.6,7.9.7,7.9.8,7.10,7.10.1,7.10.2,7.10.3,7.10.4,7.10.5,7.10.6,7.10.7,7.10.8,7.11.0,7.11.1,7.11.2,7.12.0,7.12.1,7.12.2,7.12.3,7.13.0,7.13.1,7.13.2,7.14.0,7.14.1,7.15.0,7.15.1,7.15.2,7.15.3,7.15.4,7.15.5,7.16.0,7.16.1,7.16.2,7.16.3,7.16.4,7.17.0,7.17.1,7.18.0,7.18.1,7.18.2,7.19.0,7.19.1,7.19.2,7.19.3,7.19.4,7.19.5,7.19.6,7.19.7,7.20.0,7.20.1,7.21.0,7.21.1,7.21.2,7.21.3,7.21.4,7.21.5,7.21.6,7.21.7,7.22.0,7.23.0,7.23.1,7.24.0,7.25.0,7.26.0,7.27.0,7.28.0,7.28.1,7.29.0,7.30.0,and avoid the version 7.7,7.7.1,7.7.2,7.7.3,7.8,7.8.1,7.9,7.9.1,7.9.2,7.9.3,7.9.4,7.9.5,7.9.6,7.9.7,7.9.8,7.10,7.10.1,7.10.2,7.10.3,7.10.4,7.10.5,7.10.6,7.10.7,7.10.8,7.11.0,7.11.1,7.11.2,7.12.0,7.12.1,7.12.2,7.12.3,7.13.0,7.13.1,7.13.2,7.14.0,7.14.1,7.15.0,7.15.1,7.15.2,7.15.3,7.15.4,7.15.5,7.16.0,7.16.1,7.16.2,7.16.3,7.16.4,7.17.0,7.17.1,7.18.0,7.18.1,7.18.2,7.19.0,7.19.1,7.19.2,7.19.3,7.19.4,7.19.5,7.19.6,7.19.7,7.20.0,7.20.1,7.21.0,7.21.1,7.21.2,7.21.3,7.21.4,7.21.5,7.21.6,7.21.7,7.22.0,7.23.0,7.23.1,7.24.0,7.25.0,7.26.0,7.27.0,7.28.0,7.28.1,7.29.0,7.30.0; Upgrade haxx libcurl to a higher version than 7.7,7.7.1,7.7.2,7.7.3,7.8,7.8.1,7.9,7.9.1,7.9.2,7.9.3,7.9.4,7.9.5,7.9.6,7.9.7,7.9.8,7.10,7.10.1,7.10.2,7.10.3,7.10.4,7.10.5,7.10.6,7.10.7,7.10.8,7.11.0,7.11.1,7.11.2,7.12.0,7.12.1,7.12.2,7.12.3,7.13.0,7.13.1,7.13.2,7.14.0,7.14.1,7.15.0,7.15.1,7.15.2,7.15.3,7.15.4,7.15.5,7.16.0,7.16.1,7.16.2,7.16.3,7.16.4,7.17.0,7.17.1,7.18.0,7.18.1,7.18.2,7.19.0,7.19.1,7.19.2,7.19.3,7.19.4,7.19.5,7.19.6,7.19.7,7.20.0,7.20.1,7.21.0,7.21.1,7.21.2,7.21.3,7.21.4,7.21.5,7.21.6,7.21.7,7.22.0,7.23.0,7.23.1,7.24.0,7.25.0,7.26.0,7.27.0,7.28.0,7.28.1,7.29.0,7.30.0,and avoid the version 7.7,7.7.1,7.7.2,7.7.3,7.8,7.8.1,7.9,7.9.1,7.9.2,7.9.3,7.9.4,7.9.5,7.9.6,7.9.7,7.9.8,7.10,7.10.1,7.10.2,7.10.3,7.10.4,7.10.5,7.10.6,7.10.7,7.10.8,7.11.0,7.11.1,7.11.2,7.12.0,7.12.1,7.12.2,7.12.3,7.13.0,7.13.1,7.13.2,7.14.0,7.14.1,7.15.0,7.15.1,7.15.2,7.15.3,7.15.4,7.15.5,7.16.0,7.16.1,7.16.2,7.16.3,7.16.4,7.17.0,7.17.1,7.18.0,7.18.1,7.18.2,7.19.0,7.19.1,7.19.2,7.19.3,7.19.4,7.19.5,7.19.6,7.19.7,7.20.0,7.20.1,7.21.0,7.21.1,7.21.2,7.21.3,7.21.4,7.21.5,7.21.6,7.21.7,7.22.0,7.23.0,7.23.1,7.24.0,7.25.0,7.26.0,7.27.0,7.28.0,7.28.1,7.29.0,7.30.0; Upgrade canonical ubuntu_linux to a higher version than 10.04,12.04,12.10,13.04,and avoid the version 10.04,12.04,12.10,13.04; Upgrade opensuse opensuse to a higher version than 11.4,and avoid the version 11.4; Upgrade redhat enterprise_linux to a higher version than 5,6.0,and avoid the version 5,6.0