MediaTek MT8673 Hcp 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 MT2713, MT6879, MT6895, MT6983, MT8188, MT8195, MT8395 and MT8673. It has been classified as critical. Affected by this vulnerability is an unknown functionality of the component Hcp. This manipulation causes out-of-bounds write. The identification of this vulnerability is CVE-2023-20806. The attack can only be executed locally. There is no exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability classified as critical was found in MediaTek MT2713, MT6879, MT6895, MT6983, MT8188, MT8195, MT8395 and MT8673 (Chip Software). Affected by this vulnerability is an unknown code block of the component Hcp. 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 hcp, 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: ALPS07340433; Issue ID: ALPS07537437.

The weakness was shared 08/07/2023 as ALPS07340433. The advisory is shared at corp.mediatek.com. This vulnerability is known as CVE-2023-20806 since 10/28/2022. Neither technical details nor an exploit are publicly available.

Applying the patch ALPS07340433 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: ALPS07340433

Timelineinfo

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

Sourcesinfo

Advisory: ALPS07340433
Status: Confirmed

CVE: CVE-2023-20806 (🔍)
GCVE (CVE): GCVE-0-2023-20806
GCVE (VulDB): GCVE-100-236269

Entryinfo

Created: 08/07/2023 09:02
Updated: 08/30/2023 14:06
Changes: 08/07/2023 09:02 (41), 08/30/2023 14:06 (11)
Complete: 🔍
Cache ID: 216::103

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