Blender 3d Creation Suite BKE_mesh_calc_normals_tessface integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

A vulnerability classified as critical has been found in Blender 3d Creation Suite (Image Processing Software) (the affected version is unknown). This affects the function BKE_mesh_calc_normals_tessface. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An exploitable integer overflow exists in the 'BKE_mesh_calc_normals_tessface' functionality of the Blender open-source 3d creation suite. A specially crafted .blend file can cause an integer overflow resulting in a buffer overflow which can allow for code execution under the context of the application. An attacker can convince a user to open a .blend file in order to trigger this vulnerability.

The bug was discovered 01/11/2018. The weakness was shared 04/24/2018 (Website). The advisory is shared at debian.org. This vulnerability is uniquely identified as CVE-2017-12086 since 07/31/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 103 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 111140 (Debian DSA-4248-1 : blender - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176431 (Debian Security Update for blender (DSA 4248-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (111140).

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CPE 2.3info

CPE 2.2info

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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.2

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

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 8.8
CNA Vector (Talos): 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 111140
Nessus Name: Debian DSA-4248-1 : blender - security update
Nessus File: 🔍
Nessus Risk: 🔍
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Qualys ID: 🔍
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Timelineinfo

07/31/2017 🔍
01/11/2018 +164 days 🔍
04/24/2018 +102 days 🔍
04/24/2018 +0 days 🔍
04/25/2018 +1 days 🔍
07/17/2018 +83 days 🔍
07/18/2018 +1 days 🔍
03/07/2023 +1693 days 🔍

Sourcesinfo

Advisory: DLA 1465-1
Status: Not defined

CVE: CVE-2017-12086 (🔍)
OVAL: 🔍

Entryinfo

Created: 04/25/2018 08:56 AM
Updated: 03/07/2023 08:22 AM
Changes: 04/25/2018 08:56 AM (72), 01/30/2020 08:54 PM (3), 03/07/2023 08:21 AM (4), 03/07/2023 08:22 AM (12)
Complete: 🔍
Cache ID: 44:9BB:40

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