VDB-189098 · CVE-2021-44078 · GCVE-0-2021-44078

Unicorn Engine up to 2.0.0-rc4 Virtual Memory Manager uc.c split_region sandbox

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in Unicorn Engine up to 2.0.0-rc4. This affects the function split_region of the file uc.c of the component Virtual Memory Manager. Such manipulation leads to sandbox. This vulnerability is listed as CVE-2021-44078. The attack must be carried out locally. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Unicorn Engine up to 2.0.0-rc4. It has been rated as critical. Affected by this issue is the function split_region of the file uc.c of the component Virtual Memory Manager. The manipulation with an unknown input leads to a sandbox vulnerability. Using CWE to declare the problem leads to CWE-265. Impacted is confidentiality, integrity, and availability.

The weakness was presented 12/26/2021 as c733bbada356b0373fa8aa72c044574bb855fd24. The advisory is available at github.com. This vulnerability is handled as CVE-2021-44078 since 11/20/2021. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1611 by the MITRE ATT&CK project.

Upgrading to version 2.0.0-rc5 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch c733bbada356b0373fa8aa72c044574bb855fd24 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

Unicorn Engine

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Sandbox
CWE: CWE-265 / CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Unicorn Engine 2.0.0-rc5
Patch: c733bbada356b0373fa8aa72c044574bb855fd24

Timelineinfo

11/20/2021 🔍
12/26/2021 +36 days 🔍
12/26/2021 +0 days 🔍
12/27/2021 +1 days 🔍

Sourcesinfo

Advisory: c733bbada356b0373fa8aa72c044574bb855fd24
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-44078 (🔍)
GCVE (CVE): GCVE-0-2021-44078
GCVE (VulDB): GCVE-100-189098

Entryinfo

Created: 12/26/2021 08:47
Updated: 12/27/2021 12:39
Changes: 12/26/2021 08:47 (44), 12/27/2021 12:39 (2)
Complete: 🔍
Cache ID: 216::103