CVE-2023-42753
Public on 2023-09-25
Modified on 2024-03-01
Description
The upstream commit describes this issue as follows:
The missing IP_SET_HASH_WITH_NET0 macro in ip_set_hash_netportnet can lead to the use of wrong `CIDR_POS(c)` for calculating array offsets, which can lead to integer underflow. As a result, it leads to slab out-of-bound access.
The missing IP_SET_HASH_WITH_NET0 macro in ip_set_hash_netportnet can lead to the use of wrong `CIDR_POS(c)` for calculating array offsets, which can lead to integer underflow. As a result, it leads to slab out-of-bound access.
Severity
Important
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | kernel | 2023-09-27 | ALAS-2023-1838 | Fixed |
| Amazon Linux 2 - Kernel-5.15 Extra | kernel | Pending Fix | ||
| Amazon Linux 2 - Core | kernel | 2023-09-27 | ALAS2-2023-2264 | Fixed |
| Amazon Linux 2 - Kernel-5.10 Extra | kernel | 2023-09-27 | ALAS2KERNEL-5.10-2023-040 | Fixed |
| Amazon Linux 2 - Kernel-5.4 Extra | kernel | 2023-09-27 | ALAS2KERNEL-5.4-2023-053 | Fixed |
| Amazon Linux 2023 | kernel | 2023-09-27 | ALAS2023-2023-356 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | CVSSv3 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |