#VU79075 Buffer overflow in Google Android - CVE-2023-21264

Vulnerability identifier: #VU79075

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-2023-21264

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 in KVM implementation in the Android kernel. A local application can trigger memory corruption and execute arbitrary code with elevated privileged.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Google Android: before 11, 12L, 12, 13, 11

---

External links
https://source.android.com/docs/security/bulletin/2023-08-01
https://android.googlesource.com/kernel/common/+/b35a06182451f
https://android.googlesource.com/kernel/common/+/53625a846a7b4

---

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.