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

7 CVSS

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Red Hat

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Affected Software

Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 7.7 Advanced Update Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.6 Extended Update Support, Red Hat Enterprise Linux 8.8 Extended Update Support, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.0 Extended Update Support, Red Hat Enterprise Linux 9.2 Extended Update Support, Red Hat Virtualization 4 for Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 6

Vulnerable Versions:

0:3.10.0-1160.108.1.rt56.1259.el7, 0:3.10.0-1160.108.1.el7, 0:3.10.0-1062.85.1.el7, 0:4.18.0-513.11.1.rt7.313.el8_9, 0:4.18.0-513.11.1.el8_9, 0:4.18.0-193.120.1.el8_2, 0:4.18.0-193.120.1.rt13.171.el8_2, 0:4.18.0-305.120.1.el8_4, 0:4.18.0-305.120.1.rt7.196.el8_4, 0:4.18.0-372.87.1.el8_6, 0:4.18.0-477.36.1.el8_8, 0:5.14.0-362.18.1.el9_3, 0:5.14.0-70.80.1.el9_0, 0:5.14.0-70.80.1.rt21.151.el9_0, 0:5.14.0-284.40.1.el9_2, 0:5.14.0-284.40.1.rt14.325.el9_2