MediaTek MT8798 Audio DSP 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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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in MediaTek MT6833, MT6853, MT6873, MT6877, MT6879, MT6885, MT6893, MT6895, MT6983, MT8791, MT8797 and MT8798. It has been declared as critical. The impacted element is an unknown function of the component Audio DSP. Such manipulation leads to out-of-bounds write. This vulnerability is uniquely identified as CVE-2022-21787. Local access is required to approach this attack. No exploit exists. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability was found in MediaTek MT6833, MT6853, MT6873, MT6877, MT6879, MT6885, MT6893, MT6895, MT6983, MT8791, MT8797 and MT8798 (Chip Software) and classified as critical. Affected by this issue is some unknown processing of the component Audio DSP. 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. CVE summarizes:

In audio DSP, 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: ALPS06558844; Issue ID: ALPS06558844.

The weakness was disclosed 07/07/2022 as ALPS06558844. The advisory is available at corp.mediatek.com. This vulnerability is handled as CVE-2022-21787 since 11/26/2021. The technical details are unknown and an exploit is not available.

Applying the patch ALPS06558844 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: 6.7
VulDB Meta Temp Score: 6.6

VulDB Base Score: 6.7
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
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: 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: ALPS06558844

Timelineinfo

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

Sourcesinfo

Advisory: ALPS06558844
Status: Confirmed

CVE: CVE-2022-21787 (🔍)
GCVE (CVE): GCVE-0-2022-21787
GCVE (VulDB): GCVE-100-203342

Entryinfo

Created: 07/07/2022 14:21
Updated: 07/20/2022 07:30
Changes: 07/07/2022 14:21 (41), 07/20/2022 07:30 (17)
Complete: 🔍
Cache ID: 216::103

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