Privilege escalation in Google Pixel



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-35133
CWE-ID CWE-416
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Pixel
Mobile applications / Mobile firmware & hardware

Vendor Google

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU64978

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-35133

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error in the synx driver. A local application can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Pixel: before 12L 2022-07-05

CPE2.3 External links

https://source.android.com/security/bulletin/pixel/2022-07-01
https://source.codeaurora.org/quic/la/kernel/msm-5.4/commit/?id=f0c81db62df752bd9004df796212e13ee75bd933


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.



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