MediaTek MT8797 preloader out-of-bounds write

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

Summaryinfo

A vulnerability, which was classified as critical, has been found in MediaTek MT6735, MT6739, MT6761, MT6763, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6833, MT6853, MT6855, MT6873, MT6877, MT6879, MT6885, MT6893, MT6895, MT6983, MT8163, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8183, MT8185, MT8321, MT8362A, MT8365, MT8385, MT8666, MT8667, MT8675, MT8735A, MT8735B, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789 and MT8797. This issue affects some unknown processing of the component preloader. This manipulation causes out-of-bounds write. The identification of this vulnerability is CVE-2022-26468. It is feasible to perform the attack on the physical device. There is no exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in MediaTek MT6735, MT6739, MT6761, MT6763, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6833, MT6853, MT6855, MT6873, MT6877, MT6879, MT6885, MT6893, MT6895, MT6983, MT8163, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8183, MT8185, MT8321, MT8362A, MT8365, MT8385, MT8666, MT8667, MT8675, MT8735A, MT8735B, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789 and MT8797 (Chip Software). It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component preloader. 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 preloader (usb), there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege, for an attacker who has physical access to the device, with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS07168125; Issue ID: ALPS07168125.

The weakness was shared 09/07/2022 as ALPS07168125. The advisory is shared at corp.mediatek.com. This vulnerability is known as CVE-2022-26468 since 03/04/2022. Neither technical details nor an exploit are publicly available.

Applying the patch ALPS07168125 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: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 4.1
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.6
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: Yes
Local: Yes
Remote: Partially

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: ALPS07168125

Timelineinfo

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

Sourcesinfo

Advisory: ALPS07168125
Status: Confirmed

CVE: CVE-2022-26468 (🔍)
GCVE (CVE): GCVE-0-2022-26468
GCVE (VulDB): GCVE-100-208069

Entryinfo

Created: 09/07/2022 21:31
Updated: 10/14/2022 10:23
Changes: 09/07/2022 21:31 (41), 10/14/2022 10:23 (11)
Complete: 🔍
Cache ID: 216::103

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