Updated: 2023-11-07 20:25:45.418027
Description:
A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially 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 8.4 ELS | kernel | 4.18.0 | 5.5 | MEDIUM | Released | CLSA-2023:1690287378 | 2023-07-25 09:10:40 |
| CentOS 8.5 ELS | kernel | 4.18.0 | 5.5 | MEDIUM | Released | CLSA-2023:1690294029 | 2023-07-25 11:07:01 |
| Ubuntu 16.04 ELS | linux-hwe | 4.15.0 | 5.5 | MEDIUM | Released | CLSA-2023:1693903408 | 2023-09-05 05:06:22 |
| Ubuntu 16.04 ELS | linux | 4.4.0 | 5.5 | MEDIUM | Released | CLSA-2023:1693827322 | 2023-09-04 09:30:16 |
| Ubuntu 18.04 ELS | linux | 4.15.0 | 5.5 | MEDIUM | Released | CLSA-2023:1693904331 | 2023-09-05 05:08:53 |