MediaTek MT8797 WLAN out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in MediaTek MT5221, MT6789, MT6855, MT6879, MT6895, MT6983, MT7663, MT7668, MT7902, MT7921, MT8167S, MT8168, MT8175, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8673, MT8695, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791 and MT8797. This vulnerability affects unknown code of the component WLAN. Such manipulation leads to out-of-bounds write. This vulnerability is documented as CVE-2023-20712. The attack needs to be performed locally. There is not any exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in MediaTek MT5221, MT6789, MT6855, MT6879, MT6895, MT6983, MT7663, MT7668, MT7902, MT7921, MT8167S, MT8168, MT8175, MT8362A, MT8365, MT8385, MT8518, MT8532, MT8673, MT8695, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791 and MT8797 (Chip Software). Affected by this issue is an unknown code block of the component WLAN. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In wlan, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07796914; Issue ID: ALPS07796914.

The weakness was released 06/06/2023 as ALPS07796914. The advisory is shared for download at corp.mediatek.com. This vulnerability is handled as CVE-2023-20712 since 10/28/2022. There are neither technical details nor an exploit publicly available.

Applying the patch ALPS07796914 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: 5.9
VulDB Meta Temp Score: 5.8

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

NVD Base Score: 6.7
NVD Vector: 🔍

CNA Base Score: 6.7
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: ALPS07796914

Timelineinfo

10/28/2022 🔍
06/06/2023 +221 days 🔍
06/06/2023 +0 days 🔍
01/07/2025 +581 days 🔍

Sourcesinfo

Advisory: ALPS07796914
Status: Confirmed

CVE: CVE-2023-20712 (🔍)
GCVE (CVE): GCVE-0-2023-20712
GCVE (VulDB): GCVE-100-230816

Entryinfo

Created: 06/06/2023 16:00
Updated: 01/07/2025 20:54
Changes: 06/06/2023 16:00 (41), 06/30/2023 16:08 (11), 01/07/2025 20:54 (26)
Complete: 🔍
Cache ID: 216::103

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