MediaTek MT6879/MT6895/MT6983/MT8781 Display DRM race condition

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

A vulnerability, which was classified as problematic, has been found in MediaTek MT6879, MT6895, MT6983 and MT8781 (Chip Software) (the affected version is unknown). Affected by this issue is an unknown code of the component Display DRM. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In display drm, there is a possible double free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07570826; Issue ID: ALPS07570826.

The weakness was released 04/07/2023 as ALPS07570826. The advisory is shared for download at corp.mediatek.com. This vulnerability is handled as CVE-2023-20686 since 10/28/2022. There are neither technical details nor an exploit publicly available.

Applying the patch ALPS07570826 is able to eliminate this problem.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.4
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

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: ALPS07570826

Timelineinfo

10/28/2022 🔍
04/07/2023 +161 days 🔍
04/07/2023 +0 days 🔍
04/24/2023 +17 days 🔍

Sourcesinfo

Advisory: ALPS07570826
Status: Confirmed

CVE: CVE-2023-20686 (🔍)

Entryinfo

Created: 04/07/2023 09:01 AM
Updated: 04/24/2023 10:07 AM
Changes: 04/07/2023 09:01 AM (40), 04/24/2023 10:07 AM (11)
Complete: 🔍
Cache ID: 18:7FE:40

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