Local Escalation of Privilege in Ion by MediaTek
CVE-2022-20109

7.8HIGH

Key Information:

Vendor

MediaTek
Status
Mt6580, Mt6735, Mt6737, Mt6739, Mt6750, Mt6750s, Mt6753, Mt6757, Mt6757c, Mt6757cd, Mt6757ch, Mt6761, Mt6762, Mt6763, Mt6765, Mt6768, Mt6769, Mt6771, Mt6779, Mt6781, Mt6785, Mt6797, Mt6833, Mt6853, Mt6853t, Mt6873, Mt6875, Mt6877, Mt6883, Mt6885, Mt6889, Mt6893, Mt8167, Mt8168, Mt8173, Mt8185, Mt8321, Mt8362a, Mt8365, Mt8385, Mt8666, Mt8675, Mt8695, Mt8696, Mt8765, Mt8766, Mt8768, Mt8786, Mt8788, Mt8789, Mt8791, Mt8797
Vendor
CVE Published:
3 May 2022

What is CVE-2022-20109?

The vulnerability in MediaTek's Ion arises from a possible use after free due to improper management of reference counts. This flaw can enable local escalation of privilege without requiring additional execution permissions, and it is exploitative without any action needed from users, making it a significant security concern. Affected versions require immediate attention to mitigate risks.

Affected Version(s)

MT6580, MT6735, MT6737, MT6739, MT6750, MT6750S, MT6753, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6797, MT6833, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6893, MT8167, MT8168, MT8173, MT8185, MT8321, MT8362A, MT8365, MT8385, MT8666, MT8675, MT8695, MT8696, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797 Android 9.0, 10.0, 11.0, 12.0

References

https://corp.mediatek.com/product-security-bulletin/May-2022
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

.