Vulnerability Details
Basic Information
| Title | CVE-2021-47670 |
|---|---|
| Type | nvd |
| Published | 2025-04-17T18:15:43 |
| Last Seen | 2025-04-17T19:48:41 |
| CVSS Score | 7.8 (HIGH) |
CVSS v3 Details
| Attack Vector | LOCAL |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | LOW |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | HIGH |
| Integrity Impact | HIGH |
| Availability Impact | HIGH |
CVE Information
| CVE IDs | CVE-2021-47670 |
|---|---|
| CWE | CWE-416 |
| Bulletin Family | cve |
Description
In the Linux kernel, the following vulnerability has been resolved:
can: peak_usb: fix use after free bugs
After calling peak_usb_netif_rx_ni(skb), dereferencing skb is unsafe.
Especially, the can_frame cf which aliases skb memory is accessed
after the peak_usb_netif_rx_ni().
Reordering the lines solves the issue.
Impact Assessment
| Base Score | 7.8 |
|---|---|
| Severity | HIGH |