MediaTek MT8797 vcu memory corruption

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

Summaryinfo

A vulnerability labeled as critical has been found in MediaTek MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6833, MT6835, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8167, MT8168, MT8173, MT8185, MT8321, MT8365, MT8395, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T and MT8797. This issue affects some unknown processing of the component vcu. Such manipulation leads to memory corruption. This vulnerability is listed as CVE-2023-20739. The attack must be carried out locally. There is no available exploit. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in MediaTek MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6833, MT6835, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8167, MT8168, MT8173, MT8185, MT8321, MT8365, MT8395, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T and MT8797 (Chip Software) and classified as critical. Affected by this issue is an unknown part of the component vcu. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In vcu, there is a possible memory corruption due to a logic error. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07559819; Issue ID: ALPS07559819.

The weakness was presented 06/06/2023 as ALPS07559819. The advisory is shared for download at corp.mediatek.com. This vulnerability is handled as CVE-2023-20739 since 10/28/2022. There are neither technical details nor an exploit publicly available.

Applying the patch ALPS07559819 is able to eliminate this problem.

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Productinfo

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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: Memory corruption
CWE: 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: ALPS07559819

Timelineinfo

10/28/2022 🔍
06/06/2023 +221 days 🔍
06/06/2023 +0 days 🔍
01/08/2025 +581 days 🔍

Sourcesinfo

Advisory: ALPS07559819
Status: Confirmed

CVE: CVE-2023-20739 (🔍)
GCVE (CVE): GCVE-0-2023-20739
GCVE (VulDB): GCVE-100-230828

Entryinfo

Created: 06/06/2023 16:05
Updated: 01/08/2025 00:09
Changes: 06/06/2023 16:05 (41), 06/30/2023 17:38 (11), 01/08/2025 00:09 (26)
Complete: 🔍
Cache ID: 216::103

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