#VU72032 Buffer overflow in Google Android - CVE-2023-20938

Vulnerability identifier: #VU72032

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-20938

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Google Android
Operating systems & Components / Operating system

Vendor: Google

Description

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a boundary error within the Binder component in kernel. A local application can trigger memory corruption and execute arbitrary code with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Google Android: 10 2020-12-05 - 13

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External links
https://source.android.com/docs/security/bulletin/2023-02-01#2023-02-05-security-patch-level-vulnerability-details
https://android.googlesource.com/kernel/common/+/baa23246e93f
https://android.googlesource.com/kernel/common/+/3d213a626d2d
https://android.googlesource.com/kernel/common/+/9d1efccf5ec3
https://android.googlesource.com/kernel/common/+/b83173bf86a9
https://android.googlesource.com/kernel/common/+/aaf236971732
https://android.googlesource.com/kernel/common/+/ecf61e4e1117

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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.