MediaTek MT8797 widevine out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in MediaTek MT6762, MT6765, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT8768, MT8786, MT8788, MT8789 and MT8797. It has been rated as critical. This affects an unknown part of the component widevine. This manipulation causes out-of-bounds write. This vulnerability is registered as CVE-2023-20634. The attack needs to be launched locally. No exploit is available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability has been found in MediaTek MT6762, MT6765, MT6768, MT6769, MT6779, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT8768, MT8786, MT8788, MT8789 and MT8797 (Chip Software) and classified as critical. Affected by this vulnerability is an unknown function of the component widevine. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In widevine, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07635697; Issue ID: ALPS07635697.

The weakness was published 03/08/2023 as ALPS07635697. The advisory is shared at corp.mediatek.com. This vulnerability is known as CVE-2023-20634 since 10/28/2022. Neither technical details nor an exploit are publicly available.

Applying the patch ALPS07635697 is able to eliminate this problem.

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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: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: ALPS07635697

Timelineinfo

10/28/2022 🔍
03/08/2023 +131 days 🔍
03/08/2023 +0 days 🔍
04/01/2023 +24 days 🔍

Sourcesinfo

Advisory: ALPS07635697
Status: Confirmed

CVE: CVE-2023-20634 (🔍)
GCVE (CVE): GCVE-0-2023-20634
GCVE (VulDB): GCVE-100-222565

Entryinfo

Created: 03/08/2023 09:57
Updated: 04/01/2023 16:45
Changes: 03/08/2023 09:57 (41), 04/01/2023 16:45 (11)
Complete: 🔍
Cache ID: 216::103

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