MediaTek MT8797 WLAN Driver out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in MediaTek MT6761, MT6779, MT6781, MT6833, MT6853, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8167S, MT8168, MT8175, MT8183, MT8185, MT8362A, MT8365, MT8385, MT8667, MT8675, MT8696, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791 and MT8797 and classified as critical. This issue affects some unknown processing of the component WLAN Driver. The manipulation leads to out-of-bounds write. This vulnerability is traded as CVE-2022-21784. An attack has to be approached locally. There is no exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability, which was classified as critical, has been found in MediaTek MT6761, MT6779, MT6781, MT6833, MT6853, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8167S, MT8168, MT8175, MT8183, MT8185, MT8362A, MT8365, MT8385, MT8667, MT8675, MT8696, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791 and MT8797 (Chip Software). This issue affects an unknown part of the component WLAN Driver. 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 WLAN driver, 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: ALPS06704526; Issue ID: ALPS06704462.

The weakness was shared 07/07/2022 as ALPS06704462. It is possible to read the advisory at corp.mediatek.com. The identification of this vulnerability is CVE-2022-21784 since 11/26/2021. The technical details are unknown and an exploit is not publicly available.

Applying the patch ALPS06704526 is able to eliminate this problem.

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

Productinfo

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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: ALPS06704526

Timelineinfo

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

Sourcesinfo

Advisory: ALPS06704462
Status: Confirmed

CVE: CVE-2022-21784 (🔍)
GCVE (CVE): GCVE-0-2022-21784
GCVE (VulDB): GCVE-100-203339

Entryinfo

Created: 07/07/2022 14:17
Updated: 07/20/2022 07:12
Changes: 07/07/2022 14:17 (41), 07/20/2022 07:12 (17)
Complete: 🔍
Cache ID: 216::103

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