Local Privilege Escalation in Audio Aurisys HAL by MediaTek
CVE-2021-0673

7.8HIGH

Key Information:

Vendor
Google
Status
Mt6779, Mt6781, Mt6785, Mt6853, Mt6853t, Mt6873, Mt6875, Mt6877, Mt6883, Mt6885, Mt6889, Mt6891, Mt6893, Mt8183, Mt8185, Mt8195, Mt8321, Mt8385, Mt8765, Mt8766, Mt8768, Mt8771, Mt8786, Mt8788, Mt8789, Mt8791, Mt8797
Vendor
CVE Published:
17 December 2021

Summary

A significant vulnerability exists in the Audio Aurisys HAL developed by MediaTek, where a missing permission check allows for local privilege escalation. This security flaw does not require any additional execution permissions, nor does it necessitate user interaction for exploitation. The vulnerability could potentially compromise system integrity and should be addressed promptly to mitigate risks.

Affected Version(s)

MT6779, MT6781, MT6785, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8183, MT8185, MT8195, MT8321, MT8385, MT8765, MT8766, MT8768, MT8771, MT8786, MT8788, MT8789, MT8791, MT8797 Android 10.0, 11.0, 12.0

References

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

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.