CVE-2021-44078 — Incorrect Comparison in Unicorn

CWE-697 — Incorrect Comparison3 documents3 sources
Severity
8.1HIGHNVD
EPSS
0.1%
top 77.28%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Django-unicorn UnicornUnicorn-engine Unicorn Engine
Timeline
PublishedDec 26
Latest updateDec 27

Description

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 esc…

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:HExploitability: 1.4 | Impact: 6.0

Affected Packages2 packages

▶PyPIdjango-unicorn/unicorn< c733bbada356b0373fa8aa72c044574bb855fd24+1

Patches

Patch: github.com ↗Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-rmvm-v6m6-87vr: An issue was discovered in split_region in uc↗2021-12-27
▶
OSV
CVE-2021-44078: An issue was discovered in split_region in uc↗2021-12-26
▶
CVE-2021-44078 — Incorrect Comparison in Unicorn | cvebase