Out of Bounds Write Vulnerability in NVRAM by MediaTek
CVE-2023-20790

4.4MEDIUM

Key Information:

Vendor
MediaTek
Status
Mt2713, Mt2735, Mt2737, Mt6739, Mt6761, Mt6762, Mt6763, Mt6765, Mt6768, Mt6769, Mt6771, Mt6779, Mt6781, Mt6785, Mt6789, Mt6833, Mt6835, Mt6853, Mt6853t, Mt6855, Mt6873, Mt6875, Mt6877, Mt6879, Mt6880, Mt6883, Mt6885, Mt6886, Mt6889, Mt6890, Mt6891, Mt6893, Mt6895, Mt6980, Mt6983, Mt6985, Mt6990, Mt8167, Mt8167s, Mt8168, Mt8173, Mt8175, Mt8185, Mt8188, Mt8195, Mt8321, Mt8362a, Mt8365, Mt8385, Mt8395, Mt8666, Mt8667, Mt8673, Mt8675, Mt8765, Mt8766, Mt8768, Mt8781, Mt8786, Mt8788, Mt8789, Mt8791, Mt8791t, Mt8797
Vendor
CVE Published:
7 August 2023

Summary

A potential out of bounds write vulnerability exists in the NVRAM component of MediaTek products. This flaw arises from a missing bounds check, which can lead to local information disclosure, necessitating system execution privileges for exploitation. Notably, user interaction is not required for the attack, allowing it to be executed without prior consent from the user. A patch has been issued to address this vulnerability, emphasizing the importance of maintaining updated software to safeguard against potential exploits.

Affected Version(s)

MT2713, MT2735, MT2737, MT6739, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6835, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6980, MT6983, MT6985, MT6990, MT8167, MT8167S, MT8168, MT8173, MT8175, MT8185, MT8188, MT8195, MT8321, MT8362A, MT8365, MT8385, MT8395, MT8666, MT8667, MT8673, MT8675, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797 Android 12.0, 13.0 / OpenWrt 19.07, 21.02 / RDK-B 22Q3 / Yocto 2.6, 3.3

References

https://corp.mediatek.com/product-security-bulletin/Augus...

CVSS V3.1

Score:
4.4
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.