CVE-2023-21381 - Use After Free

Severity

78%

Complexity

18%

Confidentiality

98%

In Media Resource Manager, there is a possible local arbitrary code execution due to use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

CVSS 3.1 Base Score 7.8. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Demo Examples

Use After Free

CWE-416

The following example demonstrates the weakness.


               
}
free(buf3R2);

Use After Free

CWE-416

The following code illustrates a use after free error:


               
}
free(ptr);
logError("operation aborted before commit", ptr);

When an error occurs, the pointer is immediately freed. However, this pointer is later incorrectly used in the logError function.

Overview

First reported 1 year ago

2023-10-30 18:15:00

Last updated 1 year ago

2023-11-03 19:03:00

Affected Software

Google Android Operating System

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