MediaTek MT9687 Soundtrigger out-of-bounds write

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in MediaTek MT6768, MT6781, MT6833, MT6853, MT6877, MT6878, MT6893, MT6897, MT6989, MT8775, MT8796 and MT9687. It has been declared as critical. Affected is an unknown function of the component Soundtrigger. Executing a manipulation can lead to out-of-bounds write. This vulnerability is handled as CVE-2024-20135. It is possible to launch the attack on the local host. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability classified as critical was found in MediaTek MT6768, MT6781, MT6833, MT6853, MT6877, MT6878, MT6893, MT6897, MT6989, MT8775, MT8796 and MT9687. This vulnerability affects some unknown processing of the component Soundtrigger. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In soundtrigger, 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: ALPS09142526; Issue ID: MSV-1841.

The advisory is shared for download at corp.mediatek.com. This vulnerability was named CVE-2024-20135 since 11/02/2023. The exploitation appears to be easy. The attack needs to be approached locally. The exploitation needs additional levels of successful authentication. There are neither technical details nor an exploit publicly available.

Applying the patch ALPS09142526 is able to eliminate this problem.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Chip Software

Vendor

MediaTek

Name

License

commercial

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: 🔍

CNA Base Score: 6.7
CNA Vector (MediaTek): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: ALPS09142526

Timelineinfo

11/02/2023 🔍
12/02/2024 +396 days 🔍
12/02/2024 +0 days 🔍
12/02/2024 +0 days 🔍

Sourcesinfo

Advisory: MSV-1841
Status: Confirmed

CVE: CVE-2024-20135 (🔍)
GCVE (CVE): GCVE-0-2024-20135
GCVE (VulDB): GCVE-100-286516

Entryinfo

Created: 12/02/2024 07:39
Updated: 12/02/2024 20:04
Changes: 12/02/2024 07:39 (56), 12/02/2024 13:06 (1), 12/02/2024 20:04 (11)
Complete: 🔍
Cache ID: 216::103