MediaTek MT8798 Vdec out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

A vulnerability was found in MediaTek MT6580, MT6761, MT6765, MT6768, MT6779, MT6781, MT6785, MT6789, MT6833, MT6835, MT6853, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6886, MT6889, MT6893, MT6895, MT6983, MT6985, MT8175, MT8195, MT8321, MT8365, MT8370, MT8385, MT8390, MT8395, MT8666, MT8667, MT8673, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8791T, MT8797 and MT8798 and classified as critical. This issue affects an unknown functionality 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 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: ALPS09046782; Issue ID: MSV-1728.

It is possible to read the advisory at corp.mediatek.com. The identification of this vulnerability is CVE-2024-20125 since 11/02/2023. The exploitation is known to be easy. Attacking locally is a requirement. The exploitation needs additional levels of successful authentication. The technical details are unknown and an exploit is not publicly available.

Applying the patch ALPS09046782 is able to eliminate this problem.

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Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

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

CNA Base Score: 6.7
CNA Vector (MediaTek): 🔒

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: 🔒

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: ALPS09046782

Timelineinfo

11/02/2023 CVE reserved
12/02/2024 +396 days Advisory disclosed
12/02/2024 +0 days VulDB entry created
12/02/2024 +0 days VulDB entry last update

Sourcesinfo

Advisory: MSV-1728
Status: Confirmed

CVE: CVE-2024-20125 (🔒)

Entryinfo

Created: 12/02/2024 07:31 AM
Updated: 12/02/2024 07:54 PM
Changes: 12/02/2024 07:31 AM (56), 12/02/2024 12:29 PM (1), 12/02/2024 07:54 PM (13)
Complete: 🔍
Cache ID: 18:CE3:40

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