Use-after-free in Linux kernel - CVE-2023-47233

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU82755

Use-after-free in Linux kernel - CVE-2023-47233

Published: November 6, 2023


Vulnerability identifier: #VU82755
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-47233
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows an attacker to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the brcm80211 in a brcmf_cfg80211_detach in the device unplugging (disconnect the USB by hotplug) code. An attacker with physical access to device can trigger a use-after-free error and escalate privileges on the system.


Remediation

Install update from vendor's website.

External links