Open Asset Import Library Assimp 5.4.3 File BaseImporter.cpp ConvertToUTF8 heap-based overflow

Summaryinfo

A vulnerability identified as critical has been detected in Open Asset Import Library Assimp 5.4.3. The affected element is the function Assimp::BaseImporter::ConvertToUTF8 of the file BaseImporter.cpp of the component File Handler. The manipulation leads to heap-based overflow. This vulnerability is listed as CVE-2025-2152. The attack may be initiated remotely. In addition, an exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Open Asset Import Library Assimp 5.4.3. This issue affects the function Assimp::BaseImporter::ConvertToUTF8 of the file BaseImporter.cpp of the component File Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability.

The weakness was presented by Chen Lihai and Zhang Yuqing with Xidian University/ZGClab as 6027. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2025-2152. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details as well as a public exploit are known.

The exploit is available at github.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 235880 (Amazon Linux 2 : qt5-qt3d (ALAS-2025-2848)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (235880). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Software Library

Vendor

Open Asset Import Library

Name

Assimp

Version

5.4.3

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
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: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Nessus ID: 235880
Nessus Name: Amazon Linux 2 : qt5-qt3d (ALAS-2025-2848)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/10/2025 🔍
03/10/2025 +0 days 🔍
05/14/2025 +65 days 🔍

Sourcesinfo

Advisory: 6027
Researcher: Chen Lihai, Zhang Yuqing
Organization: Xidian University/ZGClab
Status: Not defined

CVE: CVE-2025-2152 (🔍)
GCVE (CVE): GCVE-0-2025-2152
GCVE (VulDB): GCVE-100-299063
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/10/2025 07:28
Updated: 05/14/2025 13:16
Changes: 03/10/2025 07:28 (58), 03/21/2025 09:54 (2), 05/14/2025 13:16 (2)
Complete: 🔍
Committer: Anonymous User
Cache ID: 216::103

Submitinfo

Accepted

Submit #510818: https://github.com/assimp/assimp assimp v5.4.3 Heap-based Buffer Overflow (by github.com)