VDB-244506 · CVE-2023-20702 · MOLY00921261

MediaTek MT8798 Memory Access denial of service

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.
7.1	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as problematic has been found in MediaTek MT6835, MT6873, MT6875, MT6879, MT6883, MT6885, MT6886, MT6889, MT6895, MT6980, MT6983, MT6985, MT6990, MT8673, MT8675, MT8791, MT8791T, MT8797 and MT8798. This impacts an unknown function of the component Memory Access Handler. The manipulation results in denial of service. This vulnerability is identified as CVE-2023-20702. The attack can be executed remotely. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in MediaTek MT6835, MT6873, MT6875, MT6879, MT6883, MT6885, MT6886, MT6889, MT6895, MT6980, MT6983, MT6985, MT6990, MT8673, MT8675, MT8791, MT8791T, MT8797 and MT8798 (Chip Software). Affected is an unknown part of the component Memory Access Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

In 5G NRLC, there is a possible invalid memory access due to lack of error handling. This could lead to remote denial of service, if UE received invalid 1-byte rlc sdu, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00921261; Issue ID: MOLY01128895.

The weakness was released 11/06/2023 as MOLY00921261. The advisory is available at corp.mediatek.com. This vulnerability is traded as CVE-2023-20702 since 10/28/2022. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Applying the patch MOLY00921261 is able to eliminate this problem.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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: 7.2
VulDB Meta Temp Score: 7.1

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: MOLY00921261

Timelineinfo

10/28/2022 🔍
11/06/2023 +374 days 🔍
11/06/2023 +0 days 🔍
09/05/2024 +304 days 🔍

Sourcesinfo

Advisory: MOLY00921261
Status: Confirmed

CVE: CVE-2023-20702 (🔍)
GCVE (CVE): GCVE-0-2023-20702
GCVE (VulDB): GCVE-100-244506

Entryinfo

Created: 11/06/2023 07:28
Updated: 09/05/2024 23:57
Changes: 11/06/2023 07:28 (41), 12/02/2023 09:35 (11), 09/05/2024 23:57 (27)
Complete: 🔍
Cache ID: 216::103