漏洞信息
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Vulnerability Title
FFmpeg 0.5 < 9.0 DVB Subtitle Parser Heap Buffer Overflow via WTV File
Vulnerability Description
FFmpeg versions from 0.5 up to, but not including, 9.0 contain a signed integer overflow vulnerability in the DVB subtitle parser in libavcodec/dvbsub_parser.c that allows attackers to trigger a heap buffer overflow by supplying a crafted WTV file. The overflow causes the bounds-check guard expression to wrap to INT_MIN, bypassing the PARSE_BUF_SIZE comparison and invoking memcpy() with attacker-controlled data into a heap buffer, resulting in an out-of-bounds heap write and potential memory corruption or code execution.
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Vulnerability Type
整数溢出或超界折返
Vulnerability Title
FFmpeg 数字错误漏洞
Vulnerability Description
FFmpeg是FFmpeg组织开源的一个多媒体处理框架。 FFmpeg 0.5版本至9.0之前版本存在安全漏洞,该漏洞源于libavcodec/dvbsub_parser.c中的DVB字幕解析器存在有符号整数溢出,攻击者可通过提供特制的WTV文件触发堆缓冲区溢出,导致边界检查保护表达式回绕至INT_MIN,绕过PARSE_BUF_SIZE比较并调用memcpy,造成越界堆写入,可能导致内存损坏或代码执行。
CVSS Information
N/A
Vulnerability Type
N/A