MediaTek MT8797 Mailbox 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 MT6833, MT6853, MT6873, MT6877, MT6879, MT6885, MT6893, MT6895, MT6983, MT8185, MT8321, MT8385, MT8532, MT8666, MT8675, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791 and MT8797 (Chip Software). It has been classified as critical. Affected is an unknown code block of the component Mailbox. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The software writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In mailbox, there is a possible out of bounds write due to type confusion. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07032521; Issue ID: ALPS07032521.

The weakness was released 08/02/2022 as ALPS07032521. The advisory is shared for download at corp.mediatek.com. This vulnerability is traded as CVE-2022-26430 since 03/04/2022. There are neither technical details nor an exploit publicly available.

Applying the patch ALPS07032521 is able to eliminate this problem.

Productinfo

Type

Vendor

Name

License

  • commercial

CPE 2.3info

CPE 2.2info

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: 🔍

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: 🔍

Exploitinginfo

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

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: ALPS07032521

Timelineinfo

03/04/2022 CVE reserved
08/02/2022 +150 days Advisory disclosed
08/02/2022 +0 days VulDB entry created
08/29/2022 +27 days VulDB last update

Sourcesinfo

Advisory: ALPS07032521
Status: Confirmed

CVE: CVE-2022-26430 (🔒)

Entryinfo

Created: 08/02/2022 08:07 AM
Updated: 08/29/2022 02:47 PM
Changes: 08/02/2022 08:07 AM (41), 08/29/2022 02:47 PM (11)
Complete: 🔍

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