CVE-2021-0397 - Double Free

Severity

98%

Complexity

39%

Confidentiality

98%

In sdp_copy_raw_data of sdp_discovery.cc, there is a possible system compromise due to a double free. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-8.1 Android-9 Android-10Android ID: A-174052148

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 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P).

Demo Examples

Double Free

CWE-415

Double Free

CWE-415

While contrived, this code should be exploitable on Linux distributions which do not ship with heap-chunk check summing turned on.


               
}
free(buf1R2);

Overview

Type

Google Android

First reported 3 years ago

2021-03-10 16:15:00

Last updated 3 years ago

2021-03-15 20:19:00

Affected Software

Google Android 8.1

8.1

Google Android 9.0

9.0

Google Android 10.0

10.0

References

https://source.android.com/security/bulletin/2021-03-01

https://source.android.com/security/bulletin/2021-03-01

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