漏洞信息
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Vulnerability Title
HTML::Gumbo versions before 0.19 for Perl disclose heap memory via type confusion
Vulnerability Description
HTML::Gumbo versions before 0.19 for Perl disclose heap memory via type confusion.
Support for the <template> element was added to libgumbo 0.10.0 in 2015, but the walk_tree function in lib/HTML/Gumbo.xs was not updated to support it. The element was treated as a text-node, where strlen() over-reads the heap block that the pointer addresses.
Any caller that runs parse() with the default format => 'string', or with format => 'tree', on input containing a <template> element serializes the over-read bytes into the returned result, disclosing bounded heap contents. format => 'callback' reaches a croak on the unhandled node type and is unaffected.
CVSS Information
N/A
Vulnerability Type
使用不兼容类型访问资源(类型混淆)
Vulnerability Title
Best Practical Solutions HTML-Gumbo 缓冲区错误漏洞
Vulnerability Description
Best Practical Solutions HTML-Gumbo是Best Practical Solutions公司的一款处理CMS和脚本语言的HTML解析工具。 Best Practical Solutions HTML-Gumbo 0.19之前版本存在缓冲区错误漏洞,该漏洞源于lib/HTML/Gumbo.xs中的walk_tree函数未更新以支持<template>元素,导致类型混淆,从而在调用parse()时通过strlen()越界读取堆内存,泄露有限堆内容。
CVSS Information
N/A
Vulnerability Type
N/A