MediaTek MT8167S/MT8175/MT8183/MT8362A/MT8365/MT8385 Bluetooth out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in MediaTek MT8167S, MT8175, MT8183, MT8362A, MT8365 and MT8385. Affected by this issue is some unknown functionality of the component Bluetooth. This manipulation causes out-of-bounds write. This vulnerability is tracked as CVE-2022-21768. The attack is restricted to local execution. No exploit exists. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as critical was found in MediaTek MT8167S, MT8175, MT8183, MT8362A, MT8365 and MT8385 (Chip Software). Affected by this vulnerability is an unknown code of the component Bluetooth. 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. The summary by CVE is:

In Bluetooth, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06784351; Issue ID: ALPS06784351.

The weakness was disclosed 07/07/2022 as ALPS06784351. It is possible to read the advisory at corp.mediatek.com. This vulnerability is known as CVE-2022-21768 since 11/26/2021. The technical details are unknown and an exploit is not publicly available.

Applying the patch ALPS06784351 is able to eliminate this problem.

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

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.9

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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: ALPS06784351

Timelineinfo

11/26/2021 🔍
07/07/2022 +222 days 🔍
07/07/2022 +0 days 🔍
07/20/2022 +13 days 🔍

Sourcesinfo

Advisory: ALPS06784351
Status: Confirmed

CVE: CVE-2022-21768 (🔍)
GCVE (CVE): GCVE-0-2022-21768
GCVE (VulDB): GCVE-100-203347

Entryinfo

Created: 07/07/2022 14:33
Updated: 07/20/2022 08:05
Changes: 07/07/2022 14:33 (41), 07/20/2022 08:05 (18)
Complete: 🔍
Cache ID: 216::103

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