Updated: 2023-03-10 12:28:07.061403
Description:
A flaw was found in the Linux kernel’s networking code. A use-after-free was found in the way the sch_sfb enqueue function used the socket buffer (SKB) cb field after the same SKB had been enqueued (and freed) into a child qdisc. This flaw allows a local, unprivileged user to crash the system, causing a denial of service.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0 | |
| CVSS Version 3.x | MEDIUM | 5.5 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated |
|---|---|---|---|---|---|---|---|
| CentOS 6 ELS | kernel | 2.6.32 | 5.5 | MEDIUM | Ignored | 2022-10-24 05:02:33 | |
| CentOS 8.4 ELS | kernel | 4.18.0-305.25.1 | 5.5 | MEDIUM | Ignored | 2022-10-24 05:02:33 | |
| CentOS 8.5 ELS | kernel | 4.18.0-348.7.1 | 5.5 | MEDIUM | Ignored | 2022-10-24 05:02:33 | |
| CloudLinux 6 ELS | kernel | 2.6.32 | 5.5 | MEDIUM | Ignored | 2022-10-24 05:02:33 | |
| Oracle Linux 6 ELS | kernel | 2.6.32 | 5.5 | MEDIUM | Ignored | 2022-10-24 05:02:33 | |
| Ubuntu 16.04 ELS | linux-hwe | 4.15.0 | 5.5 | MEDIUM | Released | CLSA-2023:1677764911 | 2023-03-02 10:05:55 |
| Ubuntu 16.04 ELS | linux | 4.4.0 | 5.5 | MEDIUM | In Testing | 2023-02-01 10:04:34 | |
| Ubuntu 18.04 ELS | linux | 4.15.0 | 5.5 | MEDIUM | Ignored | 2023-03-02 04:03:57 |