Description
In smmu_attach_dev of arm-smmu-v3.c, there is a possible way to sign malicious Android Runtime bootclass artifacts due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Google / AndroidAndroid kernel – Android kernel