MediaTek MT8797 Mailbox out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in MediaTek MT6833, MT6853, MT6873, MT6877, MT6879, MT6885, MT6893, MT6895, MT6983, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8185, MT8321, MT8362A, MT8365, MT8385, MT8532, MT8666, MT8675, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791 and MT8797 and classified as critical. Affected by this issue is some unknown functionality of the component Mailbox. The manipulation leads to out-of-bounds write. This vulnerability is documented as CVE-2022-26435. The attack needs to be performed locally. There is not any exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in MediaTek MT6833, MT6853, MT6873, MT6877, MT6879, MT6885, MT6893, MT6895, MT6983, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8185, MT8321, MT8362A, MT8365, MT8385, MT8532, MT8666, MT8675, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791 and MT8797 (Chip Software). This issue affects an unknown part of the component Mailbox. 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 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: ALPS07138435; Issue ID: ALPS07138435.

The weakness was released 08/02/2022 as ALPS07138435. The advisory is shared at corp.mediatek.com. The identification of this vulnerability is CVE-2022-26435 since 03/04/2022. Neither technical details nor an exploit are publicly available.

Applying the patch ALPS07138435 is able to eliminate this problem.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

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
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: ALPS07138435

Timelineinfo

03/04/2022 🔍
08/02/2022 +150 days 🔍
08/02/2022 +0 days 🔍
08/29/2022 +27 days 🔍

Sourcesinfo

Advisory: ALPS07138435
Status: Confirmed

CVE: CVE-2022-26435 (🔍)
GCVE (CVE): GCVE-0-2022-26435
GCVE (VulDB): GCVE-100-205481

Entryinfo

Created: 08/02/2022 08:29
Updated: 08/29/2022 14:58
Changes: 08/02/2022 08:29 (41), 08/29/2022 14:58 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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