#VU61269 Exposure of Resource to Wrong Sphere in Linux kernel - CVE-2022-25375
Published: March 13, 2022 / Updated: October 19, 2022
Vulnerability identifier: #VU61269
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2022-25375
CWE-ID: CWE-668
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to improper access restrictions in drivers/usb/gadget/function/rndis.c in the Linux kernel. The RNDIS USB gadget lacks validation of the size of the RNDIS_MSG_SET command. A local user can run a specially crafted program to gain access to kernel memory.
Remediation
Install updates from vendor's website.
External links
- https://github.com/szymonh/rndis-co
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.10
- https://github.com/torvalds/linux/commit/38ea1eac7d88072bbffb630e2b3db83ca649b826
- http://www.openwall.com/lists/oss-security/2022/02/21/1
- https://www.debian.org/security/2022/dsa-5096
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
- https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html
- https://www.debian.org/security/2022/dsa-5092