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Vulnerabilities CVE-2023-42753

CVE-2023-42753

High
Open
TLP:CLEAR

Kernel: netfilter: potential slab-out-of-bound access due to integer underflow

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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.

Details

CVSS Score
7.0
EPSS Score
0.51%

41.3th percentile

CVSS Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Confidence
90%
Published
Sep 25, 2023
Last Modified
Aug 6, 2026
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