VDB-236260 · CVE-2023-20793 · ALPS07767818

MediaTek MT8195 apu 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.
4.3	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as problematic has been found in MediaTek MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8183, MT8188 and MT8195. This affects an unknown part of the component apu. Executing a manipulation can lead to denial of service. This vulnerability is registered as CVE-2023-20793. The attack needs to be launched locally. No exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability classified as problematic was found in MediaTek MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8183, MT8188 and MT8195 (Chip Software). This vulnerability affects an unknown part of the component apu. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

In apu, there is a possible memory corruption due to a missing bounds check. This could lead to local denial of service with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07767818; Issue ID: ALPS07767818.

The weakness was published 08/07/2023 as ALPS07767818. The advisory is shared for download at corp.mediatek.com. This vulnerability was named CVE-2023-20793 since 10/28/2022. There are neither technical details nor an exploit publicly available.

Applying the patch ALPS07767818 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: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.4
VulDB Temp Score: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.4
NVD Vector: 🔍

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: Denial of service
CWE: CWE-404
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: ALPS07767818

Timelineinfo

10/28/2022 🔍
08/07/2023 +283 days 🔍
08/07/2023 +0 days 🔍
08/30/2023 +23 days 🔍

Sourcesinfo

Advisory: ALPS07767818
Status: Confirmed

CVE: CVE-2023-20793 (🔍)
GCVE (CVE): GCVE-0-2023-20793
GCVE (VulDB): GCVE-100-236260

Entryinfo

Created: 08/07/2023 08:58
Updated: 08/30/2023 13:19
Changes: 08/07/2023 08:58 (41), 08/30/2023 13:19 (10)
Complete: 🔍
Cache ID: 216::103