MediaTek MT8797 Modem 2G RR out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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8.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in MediaTek MT2731, MT2735, MT6297, MT6725, MT6735, MT6737, MT6739, MT6750, MT6750S, MT6755, MT6757, MT6757P, MT6758, MT6761, MT6762, MT6762D, MT6762M, MT6763, MT6765, MT6765T, MT6767, MT6768, MT6769, MT6769T, MT6769Z, MT6771, MT6775, MT6779, MT6781, MT6783, MT6785, MT6785T, MT6789, MT6797, MT6799, MT6833, MT6853, MT6855, MT6873, MT6875, MT6877, MT6879, MT6880, MT6883, MT6885, MT6889, MT6890, MT6891, MT6893, MT6895, MT6983, MT8666, MT8667, MT8675, MT8735A, MT8735B, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791 and MT8797. The impacted element is an unknown function of the component Modem 2G RR. Performing a manipulation results in out-of-bounds write. This vulnerability is known as CVE-2022-21744. Remote exploitation of the attack is possible. No exploit is available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability classified as critical has been found in MediaTek MT2731, MT2735, MT6297, MT6725, MT6735, MT6737, MT6739, MT6750, MT6750S, MT6755, MT6757, MT6757P, MT6758, MT6761, MT6762, MT6762D, MT6762M, MT6763, MT6765, MT6765T, MT6767, MT6768, MT6769, MT6769T, MT6769Z, MT6771, MT6775, MT6779, MT6781, MT6783, MT6785, MT6785T, MT6789, MT6797, MT6799, MT6833, MT6853, MT6855, MT6873, MT6875, MT6877, MT6879, MT6880, MT6883, MT6885, MT6889, MT6890, MT6891, MT6893, MT6895, MT6983, MT8666, MT8667, MT8675, MT8735A, MT8735B, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8789, MT8791 and MT8797 (Chip Software). This affects some unknown processing of the component Modem 2G RR. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In Modem 2G RR, there is a possible out of bounds write due to a missing bounds check. This could lead to remote code execution when decoding GPRS Packet Neighbour Cell Data (PNCD) improper neighbouring cell size with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00810064; Issue ID: ALPS06641626.

The weakness was published 07/06/2022 as MOLY00810064. The advisory is shared at corp.mediatek.com. This vulnerability is uniquely identified as CVE-2022-21744 since 11/26/2021. Neither technical details nor an exploit are publicly available.

Applying the patch MOLY00810064 is able to eliminate this problem.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.9
VulDB Meta Temp Score: 8.7

VulDB Base Score: 8.1
VulDB Temp Score: 7.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: MOLY00810064

Timelineinfo

11/26/2021 🔍
07/06/2022 +221 days 🔍
07/06/2022 +0 days 🔍
07/19/2022 +13 days 🔍

Sourcesinfo

Advisory: MOLY00810064
Status: Confirmed

CVE: CVE-2022-21744 (🔍)
GCVE (CVE): GCVE-0-2022-21744
GCVE (VulDB): GCVE-100-203265

Entryinfo

Created: 07/06/2022 21:15
Updated: 07/19/2022 12:09
Changes: 07/06/2022 21:15 (41), 07/19/2022 12:09 (18)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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