MediaTek MT6789/MT6855/MT6879/MT6895/MT6983 gz memory corruption

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

Summaryinfo

A vulnerability described as critical has been identified in MediaTek MT6789, MT6855, MT6879, MT6895 and MT6983. This impacts an unknown function of the component gz. Such manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2022-26455. Local access is required to approach this attack. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in MediaTek MT6789, MT6855, MT6879, MT6895 and MT6983 (Chip Software). It has been rated as critical. Affected by this issue is an unknown code block of the component gz. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In gz, there is a possible memory corruption due to incorrect error handling. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07177858; Issue ID: ALPS07177858.

The weakness was disclosed 09/07/2022 as ALPS07177858. The advisory is shared for download at corp.mediatek.com. This vulnerability is handled as CVE-2022-26455 since 03/04/2022. There are neither technical details nor an exploit publicly available.

Applying the patch ALPS07177858 is able to eliminate this problem.

Once again VulDB remains the best source for vulnerability data.

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

Exploitinginfo

Class: Memory corruption
CWE: 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: ALPS07177858

Timelineinfo

03/04/2022 🔍
09/07/2022 +186 days 🔍
09/07/2022 +0 days 🔍
10/14/2022 +37 days 🔍

Sourcesinfo

Advisory: ALPS07177858
Status: Confirmed

CVE: CVE-2022-26455 (🔍)
GCVE (CVE): GCVE-0-2022-26455
GCVE (VulDB): GCVE-100-208052

Entryinfo

Created: 09/07/2022 21:20
Updated: 10/14/2022 09:33
Changes: 09/07/2022 21:20 (41), 10/14/2022 09:33 (11)
Complete: 🔍
Cache ID: 216::103

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