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.
Severity
Important severity
Important
CVSS v3 Base Score
7.8
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