CVE-2017-7487: Debian Linux

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

The ipxitf_ioctl function in net/ipx/af_ipx.c in the Linux kernel through 4.11.1 mishandles reference counts, which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a failed SIOCGIFADDR ioctl call for an IPX interface.

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only
• Linux Linux Kernel: before 3.2.89 (fixed in 3.2.89); from 3.3, before 3.16.44 (fixed in 3.16.44); from 3.17, before 3.18.55 (fixed in 3.18.55); from 3.19, before 4.1.41 (fixed in 4.1.41); from 4.2, before 4.4.70 (fixed in 4.4.70); from 4.5, before 4.9.30 (fixed in 4.9.30); …

Published 2017-05-14. Last modified 2026-06-17.