MediaTek MT8798 Vdec out-of-bounds write

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-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in MediaTek MT6580, MT6761, MT6765, MT6768, MT6779, MT6781, MT6785, MT6789, MT6833, MT6835, MT6853, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6886, MT6889, MT6893, MT6895, MT6983, MT6985, MT8175, MT8195, MT8321, MT8365, MT8370, MT8385, MT8390, MT8395, MT8666, MT8667, MT8673, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8791T, MT8797 and MT8798. Impacted is an unknown function of the component Vdec. The manipulation leads to out-of-bounds write. This vulnerability is documented as CVE-2024-20125. The attack needs to be performed locally. There is not any exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in MediaTek MT6580, MT6761, MT6765, MT6768, MT6779, MT6781, MT6785, MT6789, MT6833, MT6835, MT6853, MT6855, MT6873, MT6877, MT6879, MT6883, MT6885, MT6886, MT6889, MT6893, MT6895, MT6983, MT6985, MT8175, MT8195, MT8321, MT8365, MT8370, MT8385, MT8390, MT8395, MT8666, MT8667, MT8673, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8791T, MT8797 and MT8798 and classified as critical. This issue affects an unknown functionality of the component Vdec. 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 vdec, 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: ALPS09046782; Issue ID: MSV-1728.

It is possible to read the advisory at corp.mediatek.com. The identification of this vulnerability is CVE-2024-20125 since 11/02/2023. The exploitation is known to be easy. Attacking locally is a requirement. The exploitation needs additional levels of successful authentication. The technical details are unknown and an exploit is not publicly available.

Applying the patch ALPS09046782 is able to eliminate this problem.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

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: 🔍

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

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: ALPS09046782

Timelineinfo

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

Sourcesinfo

Advisory: MSV-1728
Status: Confirmed

CVE: CVE-2024-20125 (🔍)
GCVE (CVE): GCVE-0-2024-20125
GCVE (VulDB): GCVE-100-286511

Entryinfo

Created: 12/02/2024 07:31
Updated: 12/02/2024 19:54
Changes: 12/02/2024 07:31 (56), 12/02/2024 12:29 (1), 12/02/2024 19:54 (13)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!