7.0
High
CVE-2023-42753 Kernel: netfilter: potential slab-out-of-bound access due to integer underflow
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.
CVSS 3.1 detail
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitable with local access to the machine, with an ordinary account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.
- Attack vector
- Local
- Attack complexity
- High
- Privileges required
- Low
- Interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 7 | Versions not published | |
| Red Hat Enterprise Linux 7.7 Advanced Update Support | Versions not published | |
| Red Hat Enterprise Linux 8 | Versions not published | |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | Versions not published | |
| Red Hat Enterprise Linux 8.2 Telecommunications Update Service | Versions not published | |
| Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions | Versions not published | |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | Versions not published | |
| Red Hat Enterprise Linux 8.4 Telecommunications Update Service | Versions not published | |
| Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | Versions not published |
Show the 8 other branches Hide the 8 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 8.6 Extended Update Support | Versions not published | |
| Red Hat Enterprise Linux 8.8 Extended Update Support | Versions not published | |
| Red Hat Enterprise Linux 9 | Versions not published | |
| Red Hat Enterprise Linux 9.0 Extended Update Support | Versions not published | |
| Red Hat Enterprise Linux 9.2 Extended Update Support | Versions not published | |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 | Versions not published | |
| Red Hat Enterprise Linux 6 | Versions not published | |
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem 1.1 | earliest → < 1.1 | 1.1 |
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