Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
X Fontserver for Truetype fonts (xfstt) 1.4 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a (1) FS_QueryXExtents8 or (2) FS_QueryXBitmaps8 packet, and possibly other types of packets, with a large num_ranges value, which causes an out-of-bounds array access.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
xfstt远程拒绝服务攻击漏洞
Vulnerability Description
X Fontserver Truetype fonts用于对TrueType字体进行解析。 xfstt由于不正确处理用户提交的恶意包，远程攻击者可以利用这个漏洞触发缓冲区溢出，进行拒绝服务攻击。 问题存在于xfstt.cc文件中的working()函数调用中，对来自外部接收到的数据缺少充分边界缓冲区检查，攻击者发送包含超大'req->num_ranges'值的包给xfstt服务器，可导致触发缓冲区溢出，也可能以xfstt进程权限在系统上执行任意指令。
CVSS Information
N/A
Vulnerability Type
N/A