CVE-2020-10845 - Use After Free

Severity

64%

Complexity

5%

Confidentiality

98%

An issue was discovered on Samsung mobile devices with O(8.x), P(9.0), and Q(10.0) software. There is a race condition leading to a use-after-free in MTP. The Samsung ID is SVE-2019-16520 (February 2020).

An issue was discovered on Samsung mobile devices with O(8.x), P(9.0), and Q(10.0) software. There is a race condition leading to a use-after-free in MTP. The Samsung ID is SVE-2019-16520 (February 2020).

CVSS 3.1 Base Score 6.4. CVSS Attack Vector: physical. CVSS Attack Complexity: high. CVSS Vector: (CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 4.4. CVSS Attack Vector: local. CVSS Attack Complexity: medium. CVSS Vector: (AV:L/AC:M/Au:N/C:P/I:P/A:P).

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

Type

Google Android

First reported 4 years ago

2020-03-24 18:15:00

Last updated 4 years ago

2020-03-27 13:48:00

Affected Software

Google Android 8.0

8.0

Google Android 8.1

8.1

Google Android 9.0

9.0

Google Android 10.0

10.0

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