CVE-2021-44078

Katalog CVE

CVSS 8.1 · High EPSS 0,53%

Kerentanan Incorrect Comparison pada unicorn-engine unicorn engine. Skor CVSS 3.1 8.1 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

26 Desember 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.1 (High), sumber NVD
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-697: Incorrect Comparison

EPSS (30 hari)

0,53% peluang dieksploitasi; lebih tinggi dari 43,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.unicorn-engine.org/changelog/ advisory vendor
• https://github.com/unicorn-engine/unicorn/commit/c733bbada356b0373fa8aa72c044574bb855fd24 patch · advisory pihak ketiga
• https://github.com/unicorn-engine/unicorn/compare/2.0.0-rc4...2.0.0-rc5 patch · advisory pihak ketiga
• https://gist.github.com/jwang-a/cb4b6e9551457aa299066076b836a2cd advisory pihak ketiga
• https://github.com/jwang-a/CTF/blob/master/MyChallenges/Pwn/Unicorns_Aisle/UnicornsAisle.pdf advisory pihak ketiga