CVE-2023-42753
Published: September 25, 2023Last modified: September 26, 2023
Description
An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro could lead to a miscalculation of the `h->nets` array offset, providing attackers with the primitive to arbitrarily increment/decrement a memory buffer out-of-bound. This issue may allow a local user to crash the system or potentially escalate their privileges on the system.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | Stream | linux-lts | Fixed (6.1.53-r0) |
References
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html
- https://access.redhat.com/errata/RHSA-2023:7370
- https://access.redhat.com/errata/RHSA-2023:7379
- https://access.redhat.com/errata/RHSA-2023:7382
- https://access.redhat.com/errata/RHSA-2023:7389
- https://access.redhat.com/errata/RHSA-2023:7411
- https://access.redhat.com/errata/RHSA-2023:7418
- https://access.redhat.com/errata/RHSA-2023:7539
- https://access.redhat.com/errata/RHSA-2023:7558
- https://access.redhat.com/errata/RHSA-2024:0089
- https://access.redhat.com/errata/RHSA-2024:0113
- https://access.redhat.com/errata/RHSA-2024:0134
- https://access.redhat.com/errata/RHSA-2024:0340
- https://access.redhat.com/errata/RHSA-2024:0346
- https://access.redhat.com/errata/RHSA-2024:0347
- https://access.redhat.com/errata/RHSA-2024:0371
- https://access.redhat.com/errata/RHSA-2024:0376
- https://access.redhat.com/errata/RHSA-2024:0378
- https://access.redhat.com/errata/RHSA-2024:0402
- https://access.redhat.com/errata/RHSA-2024:0403
- https://access.redhat.com/errata/RHSA-2024:0412
- https://access.redhat.com/errata/RHSA-2024:0461
- https://access.redhat.com/errata/RHSA-2024:0562
- https://access.redhat.com/errata/RHSA-2024:0563
- https://access.redhat.com/errata/RHSA-2024:0593
- https://access.redhat.com/errata/RHSA-2024:0999
- https://access.redhat.com/security/cve/CVE-2023-42753
- https://bugzilla.redhat.com/show_bug.cgi?id=2239843
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- https://seclists.org/oss-sec/2023/q3/216
- https://www.openwall.com/lists/oss-security/2023/09/22/10