LoginPacket 中的缓冲区长度下溢导致引发未经检查的异常

CVE编号

N/A

利用情况

暂无

补丁情况

N/A

披露时间

2022-04-06

漏洞描述

LoginPacket uses BinaryStream->getLInt() to read the lengths of JSON payloads it wants to decode. Unfortunately, BinaryStream->getLInt() returns a signed integer, meaning that a malicious client can craft a packet with a large uint32 value for payload buffer size (which would be interpreted as a negative signed int32), causing BinaryStream->get() to throw an exception.

解决建议

建议您更新当前系统或软件至最新版，完成漏洞的修复。

参考链接
https://github.com/advisories/GHSA-5jfw-35xp-5m42

CVSS3评分 7.5

• 攻击路径 N/A
• 攻击复杂度 N/A
• 权限要求 N/A
• 影响范围 N/A
• 用户交互 N/A
• 可用性 N/A
• 保密性 N/A
• 完整性 N/A

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-ID	漏洞类型
CWE-124	缓冲区下溢

Exp相关链接

- avd.aliyun.com