漏洞信息
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Vulnerability Title
GNU Wget 1.25.0 Heap Buffer Overflow via convert_fname() in url.c
Vulnerability Description
GNU Wget through 1.25.0, fixed in commit c2640fe, contains a heap buffer overflow vulnerability in the convert_fname() function within src/url.c that allows remote attackers to trigger memory corruption through a server-supplied filename requiring character set conversion. When the output buffer is too small during iconv E2BIG reallocation, the reallocation logic miscalculates the remaining space, leading to a heap buffer overflow that can be exploited via a maliciously crafted server response.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H
Vulnerability Type
堆缓冲区溢出
Vulnerability Title
GNU wget 缓冲区错误漏洞
Vulnerability Description
GNU wget是美国GNU基金会开源的一个文件下载工具。 GNU wget 1.25.0及之前版本存在缓冲区错误漏洞,该漏洞源于src/url.c中的convert_fname()函数存在堆缓冲区溢出漏洞,可能导致远程攻击者通过服务器提供的文件名触发字符集转换而导致内存损坏,当iconv E2BIG重新分配输出缓冲区过小时,重新分配逻辑错误计算剩余空间,导致可通过恶意服务器响应利用的堆缓冲区溢出。
CVSS Information
N/A
Vulnerability Type
N/A