MediaTek MT8798 WLAN Firmware out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

A vulnerability was found in MediaTek MT2713, MT6580, MT6761, MT6762, MT6768, MT6781, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6983, MT6985, MT6989, MT6990, MT7902, MT7915, MT7916, MT7920, MT7921, MT7922, MT7925, MT7927, MT7981, MT7986, MT8188, MT8195, MT8370, MT8390, MT8395, MT8518S, MT8532, MT8673, MT8678, MT8781, MT8791T, MT8792, MT8796, MT8797 and MT8798. It has been rated as critical. This issue affects some unknown processing of the component WLAN Firmware. 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 firmware, there is a possible out of bounds write due to improper input validation. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS08360153 (for MT6XXX chipsets) / WCNCR00363530 (for MT79XX chipsets); Issue ID: MSV-979.

It is possible to read the advisory at corp.mediatek.com. The identification of this vulnerability is CVE-2024-20040 since 11/02/2023. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available.

Applying the patch ALPS08360153 is able to eliminate this problem.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔒
VulDB CVSS-BT Score: 🔒
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

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: 🔒

Local: No
Remote: Yes

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: ALPS08360153

Timelineinfo

11/02/2023 CVE reserved
04/01/2024 +150 days Advisory disclosed
04/01/2024 +0 days VulDB entry created
04/01/2024 +0 days VulDB entry last update

Sourcesinfo

Advisory: ALPS08360153
Status: Confirmed

CVE: CVE-2024-20040 (🔒)

Entryinfo

Created: 04/01/2024 07:56
Changes: 04/01/2024 07:56 (55)
Complete: 🔍

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