MediaTek MT9688 Vdec 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 categorized as critical has been discovered in MediaTek MT5583, MT5691, MT5695, MT9010, MT9011, MT9012, MT9016, MT9020, MT9021, MT9022, MT9030, MT9031, MT9032, MT9215, MT9216, MT9218, MT9220, MT9221, MT9222, MT9255, MT9256, MT9266, MT9269, MT9285, MT9286, MT9288, MT9600, MT9602, MT9610, MT9611, MT9612, MT9613, MT9615, MT9617, MT9629, MT9630, MT9631, MT9632, MT9636, MT9638, MT9639, MT9650, MT9652, MT9666, MT9667, MT9669, MT9670, MT9671, MT9675, MT9685, MT9686 and MT9688. This vulnerability affects unknown code of the component Vdec. Executing a manipulation can lead to out-of-bounds write. This vulnerability is tracked as CVE-2023-20809. The attack is restricted to local execution. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability has been found in MediaTek MT5583, MT5691, MT5695, MT9010, MT9011, MT9012, MT9016, MT9020, MT9021, MT9022, MT9030, MT9031, MT9032, MT9215, MT9216, MT9218, MT9220, MT9221, MT9222, MT9255, MT9256, MT9266, MT9269, MT9285, MT9286, MT9288, MT9600, MT9602, MT9610, MT9611, MT9612, MT9613, MT9615, MT9617, MT9629, MT9630, MT9631, MT9632, MT9636, MT9638, MT9639, MT9650, MT9652, MT9666, MT9667, MT9669, MT9670, MT9671, MT9675, MT9685, MT9686 and MT9688 (Chip Software) and classified as critical. This vulnerability affects an unknown functionality of the component Vdec. 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 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: DTV03751198; Issue ID: DTV03751198.

The weakness was disclosed 08/07/2023. The advisory is shared for download at corp.mediatek.com. This vulnerability was named CVE-2023-20809 since 10/28/2022. There are neither technical details nor an exploit publicly available.

Applying a patch is able to eliminate this problem.

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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: 🔍

Timelineinfo

10/28/2022 🔍
08/07/2023 +283 days 🔍
08/07/2023 +0 days 🔍
10/23/2024 +443 days 🔍

Sourcesinfo

Advisory: corp.mediatek.com
Status: Confirmed

CVE: CVE-2023-20809 (🔍)
GCVE (CVE): GCVE-0-2023-20809
GCVE (VulDB): GCVE-100-236272

Entryinfo

Created: 08/07/2023 09:03
Updated: 10/23/2024 04:53
Changes: 08/07/2023 09:03 (37), 08/07/2023 09:05 (2), 08/30/2023 14:10 (11), 10/23/2024 04:53 (26)
Complete: 🔍
Cache ID: 216::103

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