Not to be fixed
Created: Jul 23, 2023
Updated: Nov 2, 2023
Resolved Date: Nov 2, 2023
Found In Version: 10.18.44.1
Severity: Standard
Applicable for: Wind River Linux LTS 18
Component/s: Kernel
A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation.
If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.
We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.
CREATE(Triage):(User=admin) CVE-2023-3776 (https://nvd.nist.gov/vuln/detail/CVE-2023-3776)
