MediaTek MT9982 vcu out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability was found in MediaTek MT5696, MT5836, MT5838, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8168, MT8175, MT8195, MT8365, MT8395, MT8673, MT8781, MT8786, MT8789, MT8791T, MT8797, MT9000, MT9015, MT9023, MT9025, MT9618, MT9649, MT9653, MT9679, MT9687, MT9689, MT9902, MT9932, MT9952, MT9972 and MT9982. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component vcu. Executing a manipulation can lead to out-of-bounds write. The identification of this vulnerability is CVE-2023-20735. The attack can only be executed locally. There is no exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability classified as critical was found in MediaTek MT5696, MT5836, MT5838, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8168, MT8175, MT8195, MT8365, MT8395, MT8673, MT8781, MT8786, MT8789, MT8791T, MT8797, MT9000, MT9015, MT9023, MT9025, MT9618, MT9649, MT9653, MT9679, MT9687, MT9689, MT9902, MT9932, MT9952, MT9972 and MT9982 (Chip Software). This vulnerability affects some unknown processing of the component vcu. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In vcu, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07645149; Issue ID: ALPS07645178.

The weakness was shared 06/06/2023 as ALPS07645149. The advisory is shared for download at corp.mediatek.com. This vulnerability was named CVE-2023-20735 since 10/28/2022. There are neither technical details nor an exploit publicly available.

Applying the patch ALPS07645149 is able to eliminate this problem.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Vendor

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License

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: ALPS07645149

Timelineinfo

10/28/2022 🔍
06/06/2023 +221 days 🔍
06/06/2023 +0 days 🔍
01/08/2025 +582 days 🔍

Sourcesinfo

Advisory: ALPS07645149
Status: Confirmed

CVE: CVE-2023-20735 (🔍)
GCVE (CVE): GCVE-0-2023-20735
GCVE (VulDB): GCVE-100-230824

Entryinfo

Created: 06/06/2023 16:03
Updated: 01/08/2025 16:53
Changes: 06/06/2023 16:03 (41), 06/30/2023 17:09 (11), 01/08/2025 16:53 (26)
Complete: 🔍
Cache ID: 216::103

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