CVE-2021-44078

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.

Link	Resource
https://gist.github.com/jwang-a/cb4b6e9551457aa299066076b836a2cd	Third Party Advisory
https://github.com/unicorn-engine/unicorn/compare/2.0.0-rc4...2.0.0-rc5	Patch Third Party Advisory
https://github.com/jwang-a/CTF/blob/master/MyChallenges/Pwn/Unicorns_Aisle/UnicornsAisle.pdf	Third Party Advisory
https://github.com/unicorn-engine/unicorn/commit/c733bbada356b0373fa8aa72c044574bb855fd24	Patch Third Party Advisory
https://www.unicorn-engine.org/changelog/	Vendor Advisory

Configuration 1

cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc2:*:*:*:*:*:* cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc3:*:*:*:*:*:* cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc4:*:*:*:*:*:* cpe:2.3:a:unicorn-engine:unicorn_engine:*:*:*:*:*:*:*:* cpe:2.3:a:unicorn-engine:unicorn_engine:2.0.0:rc1:*:*:*:*:*:*

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Published : 2021-12-26 05:15

Updated : 2022-01-07 06:29

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NVD link : CVE-2021-44078

Mitre link : CVE-2021-44078

No products.

CWE-697