Double Free in Google, Google Android

1) Double Free

EUVDB-ID: #VU20905

Risk: Low

CVSSv3.1: 7.1 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: N/A

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

The vulnerability allows a local attacker to execute arbitrary code on the target system.

The vulnerability exists within the v4l2 driver due to the lack of validating the existence of an object prior to performing operations on the object. A local attacker, which must first obtain the ability to execute low-privileged code on the target system, can leverage this to escalate privileges in the context of the kernel, trigger double free error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Google Android: 1.0 - 9.0

External links

http://www.zerodayinitiative.com/advisories/ZDI-19-780/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.