unicorn-engine unicorn_engine 不充分的比较

CVE编号

CVE-2021-44078

利用情况

暂无

补丁情况

N/A

披露时间

2021-12-26

漏洞描述

An issue was discovered in split_region in uc.c in Unicorn Engine before 2.0.0-rc5. It allows local attackers to escape the sandbox. An attacker must first obtain the ability to execute crafted code in the target sandbox in order to exploit this vulnerability. The specific flaw exists within the virtual memory manager. The issue results from the faulty comparison of GVA and GPA while calling uc_mem_map_ptr to free part of a claimed memory block. An attacker can leverage this vulnerability to escape the sandbox and execute arbitrary code on the host machine.

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://gist.github.com/jwang-a/cb4b6e9551457aa299066076b836a2cd
https://github.com/jwang-a/CTF/blob/master/MyChallenges/Pwn/Unicorns_Aisle/Un...
https://github.com/unicorn-engine/unicorn/commit/c733bbada356b0373fa8aa72c044...
https://github.com/unicorn-engine/unicorn/compare/2.0.0-rc4...2.0.0-rc5
https://www.unicorn-engine.org/changelog/

受影响软件情况

#	类型	厂商	产品	版本	影响面
1
	运行在以下环境
	应用	unicorn-engine	unicorn_engine	*		Up to (including) 1.0.3
	运行在以下环境
	应用	unicorn-engine	unicorn_engine	2.0.0	-

CVSS3评分 8.1

• 攻击路径 本地
• 攻击复杂度 高
• 权限要求 无
• 影响范围 已更改
• 用户交互 无
• 可用性 高
• 保密性 高
• 完整性 高

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CWE-ID 漏洞类型 CWE-697 不充分的比较