CVE-2013-6381: Buffer overflow in the qeth_snmp_command function in drivers/s390/net/qeth_core_main.c in the Linux kernel...

Security readout for executives and security teams

This is an old Linux kernel flaw in the s390 qeth network driver. A local user could trigger a buffer overflow through an SNMP ioctl path, causing a crash or potentially other unspecified impact. It is not listed in CISA KEV, and the provided sources do not show active exploitation. Exposure is likely limited to Linux systems on the s390 architecture using the affected qeth driver and allowing local user access. General Linux servers not using this driver path are less likely to be exposed. Downstream distribution impact should be verified against vendor advisories. Treat this as a focused legacy-kernel remediation item, not a broad emergency. Prioritize if the organization operates IBM s390 Linux environments with local user access. Otherwise, confirm non-exposure and document the decision. Mitigation focus: Apply vendor kernel updates that address CVE-2013-6381.; Review Red Hat advisories if running affected Red Hat kernels.; Confirm kernels include upstream commit 6fb392b1a63ae36c31f62bc3fc8630b49d602b62 or equivalent fixes..

Prepared

Jun 14, 2026, 15:13 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.