#VU67867 Integer overflow in Google Android - CVE-2022-20423
Published: October 4, 2022
Vulnerability identifier: #VU67867
Vulnerability risk: Low
CVSSv4.0: 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-2022-20423
CWE-ID: CWE-190
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Google Android
Google Android
Software vendor:
Google
Description
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to integer overflow within the rndis_set_response() function in drivers/usb/gadget/function/rndis.c in Linux kernel. A local application can trigger ab integer overflow and execute arbitrary code with elevated privileges.
Remediation
Install updates from vendor's website.
External links
- https://source.android.com/docs/security/bulletin/2022-10-01#2022-10-05-security-patch-level-vulnerability-details
- https://android.googlesource.com/kernel/common/+/0a21a3eb9fcea0609f3bc8bee1f796788e0a770e
- https://android.googlesource.com/kernel/common/+/28bc0267399f4
- https://lore.kernel.org/all/20220301080424.GA17208@kili/