VDB-238647 · CVE-2023-20839 · ALPS07326455

MediaTek MT8673 imgsys out-of-bounds

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.
3.2	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in MediaTek MT2713, MT6895, MT6897, MT6983, MT8188, MT8195, MT8395 and MT8673 and classified as problematic. This affects an unknown part of the component imgsys. Performing a manipulation results in out-of-bounds. This vulnerability is reported as CVE-2023-20839. The attack requires a local approach. No exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in MediaTek MT2713, MT6895, MT6897, MT6983, MT8188, MT8195, MT8395 and MT8673 (Chip Software). This affects an unknown part of the component imgsys. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality. The summary by CVE is:

In imgsys, there is a possible out of bounds read due to a missing valid range checking. This could lead to local information disclosure with System execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS07326455; Issue ID: ALPS07326409.

The weakness was disclosed 09/04/2023 as ALPS07326455. It is possible to read the advisory at corp.mediatek.com. This vulnerability is uniquely identified as CVE-2023-20839 since 10/28/2022. The technical details are unknown and an exploit is not publicly available.

Applying the patch ALPS07326455 is able to eliminate this problem.

Be aware that VulDB is the high quality 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: 3.2
VulDB Meta Temp Score: 3.2

VulDB Base Score: 2.3
VulDB Temp Score: 2.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.2
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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: ALPS07326455

Timelineinfo

10/28/2022 🔍
09/04/2023 +311 days 🔍
09/04/2023 +0 days 🔍
09/29/2023 +25 days 🔍

Sourcesinfo

Advisory: ALPS07326455
Status: Confirmed

CVE: CVE-2023-20839 (🔍)
GCVE (CVE): GCVE-0-2023-20839
GCVE (VulDB): GCVE-100-238647

Entryinfo

Created: 09/04/2023 07:00
Updated: 09/29/2023 23:11
Changes: 09/04/2023 07:00 (41), 09/29/2023 23:11 (11)
Complete: 🔍
Cache ID: 216::103