Out of Bounds Write Vulnerability in MediaTek WLAN Driver
CVE-2022-21781

6.7MEDIUM

Key Information:

Vendor

MediaTek
Status
Mt6761, Mt6779, Mt6781, Mt6833, Mt6853, Mt6873, Mt6877, Mt6879, Mt6883, Mt6885, Mt6889, Mt6893, Mt6895, Mt6983, Mt8167s, Mt8168, Mt8175, Mt8183, Mt8185, Mt8362a, Mt8365, Mt8385, Mt8667, Mt8675, Mt8696, Mt8766, Mt8768, Mt8786, Mt8788, Mt8789, Mt8791, Mt8797
Vendor
CVE Published:
6 July 2022

What is CVE-2022-21781?

The WLAN driver for MediaTek products is susceptible to an out of bounds write vulnerability due to a failure to perform adequate bounds checking. This flaw allows for potential local escalation of privileges, which could enable a malicious actor to execute operations with elevated system privileges. Importantly, user interaction is not required for the exploitation of this vulnerability, posing a significant security risk. Addressing this issue is critical, and the recommended patch ID for remediation is ALPS06704526.

Affected Version(s)

MT6761, MT6779, MT6781, MT6833, MT6853, MT6873, MT6877, MT6879, MT6883, MT6885, MT6889, MT6893, MT6895, MT6983, MT8167S, MT8168, MT8175, MT8183, MT8185, MT8362A, MT8365, MT8385, MT8667, MT8675, MT8696, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797 Android 11.0, 12.0

References

https://corp.mediatek.com/product-security-bulletin/July-...
x_refsource_MISC

CVSS V3.1

Score:
6.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.