#VU47545 Input validation error in Linux kernel - CVE-2020-12351
Published: October 13, 2020 / Updated: June 17, 2021
Vulnerability identifier: #VU47545
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2020-12351
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
Public exploit is available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to insufficient validation of user-supplied input within the BlueZ implementation in Linux kernel. A remote attacker on the local network can pass specially crafted input to the application and execute arbitrary code on the system.
Remediation
Install updates from vendor's website.
External links
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00435.html
- https://lore.kernel.org/linux-bluetooth/20200806181714.3216076-1-luiz.dentz@gmail.com/
- https://lore.kernel.org/linux-bluetooth/20200806181714.3216076-2-luiz.dentz@gmail.com/
- https://lore.kernel.org/linux-bluetooth/20200806181714.3216076-3-luiz.dentz@gmail.com/
- https://lore.kernel.org/linux-bluetooth/20200806181714.3216076-4-luiz.dentz@gmail.com/
- https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=a2ec905d1e160a33b2e210e45ad30445ef26ce0e