CVE-2019-2205 - Use After Free

Severity

98%

Complexity

39%

Confidentiality

98%

In ProxyResolverV8::SetPacScript of proxy_resolver_v8.cc, there is a possible memory corruption due to a use after free. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.0 Android-8.1 Android-9 Android-10Android ID: A-139806216

In ProxyResolverV8::SetPacScript of proxy_resolver_v8.cc, there is a possible memory corruption due to a use after free. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.0 Android-8.1 Android-9 Android-10Android ID: A-139806216

CVSS 3.1 Base Score 9.8. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 9.9. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C).

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 5 years ago

2019-11-13 18:15:00

Last updated 5 years ago

2019-11-15 13:13:00

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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