A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system.
| Platform | Package | Release Date | Advisory |
|---|---|---|---|
| Amazon Linux 1 | kernel | 2023-12-04 | ALAS-2023-1883 |
| Amazon Linux 2 - Core | kernel | 2023-11-01 | ALAS2-2023-2328 |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2023-11-01 | ALAS2KERNEL-5.10-2023-042 |
| Amazon Linux 2 - Kernel-5.15 Extra | kernel | 2023-10-19 | ALAS2KERNEL-5.15-2023-028 |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2023-11-01 | ALAS2KERNEL-5.4-2023-055 |
| Amazon Linux 2023 | kernel | 2023-10-24 | ALAS2023-2023-385 |
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 4.4 | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H |
| NVD | CVSSv3 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
