CVE Vulnerabilities

CVE-2024-40676

Access of Resource Using Incompatible Type ('Type Confusion')

Published: Jan 28, 2025 | Modified: Apr 22, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

In checkKeyIntent of AccountManagerService.java, there is a possible way to bypass intent security check and install an unknown app due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Weakness 

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

Affected Software 

Name Vendor Start Version End Version
Android Google 12.0 (including) 12.0 (including)
Android Google 12.1 (including) 12.1 (including)
Android Google 13.0 (including) 13.0 (including)
Android Google 14.0 (including) 14.0 (including)
Android Google 15.0 (including) 15.0 (including)

Extended Description 

When the product accesses the resource using an incompatible type, this could trigger logical errors because the resource does not have expected properties. In languages without memory safety, such as C and C++, type confusion can lead to out-of-bounds memory access. While this weakness is frequently associated with unions when parsing data with many different embedded object types in C, it can be present in any application that can interpret the same variable or memory location in multiple ways. This weakness is not unique to C and C++. For example, errors in PHP applications can be triggered by providing array parameters when scalars are expected, or vice versa. Languages such as Perl, which perform automatic conversion of a variable of one type when it is accessed as if it were another type, can also contain these issues.

References