SB20240530163 - Use-after-free in Linux kernel rtl8712 driver
Published: May 30, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240530163
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2021-47479)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the r871xu_dev_remove() function in drivers/staging/rtl8712/usb_intf.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/c430094541a80575259a94ff879063ef01473506
- https://git.kernel.org/stable/c/befd23bd3b17f1a3f9c943a8580b47444c7c63ed
- https://git.kernel.org/stable/c/a65c9afe9f2f55b7a7fb4a25ab654cd4139683a4
- https://git.kernel.org/stable/c/c052cc1a069c3e575619cf64ec427eb41176ca70
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.79
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16