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.
Published 2023-09-25 21:15:16
Updated 2024-09-13 19:15:15
Source Red Hat, Inc.
View at NVD,   CVE.org

Products affected by CVE-2023-42753

Exploit prediction scoring system (EPSS) score for CVE-2023-42753

0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 9 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-42753

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.8
HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1.8
5.9
NIST
7.0
HIGH CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
1.0
5.9
Red Hat, Inc.

CWE ids for CVE-2023-42753

  • The product writes data past the end, or before the beginning, of the intended buffer.
    Assigned by:
    • nvd@nist.gov (Primary)
    • secalert@redhat.com (Secondary)

References for CVE-2023-42753

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