VDB-244499 · CVE-2023-32818 · ALPS08163896

MediaTek MT6885 Vdec out-of-bounds write

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.
5.8	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in MediaTek MT6761, MT6763, MT6765, MT6768, MT6771, MT6779, MT6785, MT6853, MT6873 and MT6885 and classified as critical. This affects an unknown part of the component Vdec. The manipulation leads to out-of-bounds write. This vulnerability is traded as CVE-2023-32818. An attack has to be approached locally. There is no exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in MediaTek MT6761, MT6763, MT6765, MT6768, MT6771, MT6779, MT6785, MT6853, MT6873 and MT6885 (Chip Software) and classified as critical. This issue affects an unknown part of the component Vdec. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In vdec, there is a possible out of bounds write due to type confusion. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS08163896 & ALPS08013430; Issue ID: ALPS07867715.

The weakness was shared 11/06/2023 as ALPS08163896. It is possible to read the advisory at corp.mediatek.com. The identification of this vulnerability is CVE-2023-32818 since 05/16/2023. The technical details are unknown and an exploit is not publicly available.

Applying the patch ALPS08163896 is able to eliminate this problem.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Chip Software

Vendor

MediaTek

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CNA Base Score: 6.7
CNA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: ALPS08163896

Timelineinfo

05/16/2023 🔍
11/06/2023 +174 days 🔍
11/06/2023 +0 days 🔍
09/05/2024 +304 days 🔍

Sourcesinfo

Advisory: ALPS08163896
Status: Confirmed

CVE: CVE-2023-32818 (🔍)
GCVE (CVE): GCVE-0-2023-32818
GCVE (VulDB): GCVE-100-244499

Entryinfo

Created: 11/06/2023 07:27
Updated: 09/05/2024 23:57
Changes: 11/06/2023 07:27 (41), 12/02/2023 09:19 (11), 09/05/2024 23:57 (27)
Complete: 🔍
Cache ID: 216::103