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Fencer Intel
high 7.8

CVE-2017-7487 json

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 c…

published 2017-05-14 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-16507

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits
0
none known

Summary

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.

Patch / fix

  • linux linux_kernel 3.2.89, 3.16.44, 3.18.55, 4.1.41, 4.4.70, 4.9.30, 4.11.3
  • linux Debian 14, Debian 13, Debian 12 4.9.30-1

debian advisories DEBIAN-CVE-2017-7487

  • linux Ubuntu 14.04 LTS 3.13.0-129.178
  • linux Ubuntu 16.04 LTS 4.4.0-83.106
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1022.31
  • linux-gke Ubuntu 16.04 LTS 4.4.0-1018.18
  • linux-hwe Ubuntu 16.04 LTS 4.10.0-33.37~16.04.1
  • linux-raspi2 Ubuntu 16.04 LTS 4.4.0-1061.69
  • linux-lts-xenial Ubuntu 14.04 LTS 4.4.0-83.106~14.04.1
  • linux-snapdragon Ubuntu 16.04 LTS 4.4.0-1063.68

ubuntu advisories UBUNTU-CVE-2017-7487

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel-ec2 SLE Module for Public Cloud 12 3.12.61-52.101.1
  • kernel-ec2 SLE Module for Public Cloud 12 3.12.74-60.64.63.1
  • kernel-xen SLES for SAP 12 SP1, SLES 12 SP1-LTSS, OpenStack Cloud 6 3.12.74-60.64.63.1
  • kernel-syms SLES for SAP 12 SP1, SLES 12 SP1-LTSS, OpenStack Cloud 6 3.12.74-60.64.63.1
  • kernel-source SLES for SAP 12 SP1, SLES 12 SP1-LTSS, OpenStack Cloud 6 3.12.74-60.64.63.1
  • kernel-default SLES for SAP 12 SP1, SLES 12 SP1-LTSS, OpenStack Cloud 6 3.12.74-60.64.63.1
  • kgraft-patch-SLE12-SP1_Update_22 SLES for SAP 12 SP1, SLES 12 SP1-LTSS, OpenStack Cloud 6 1-2.1
  • kernel-ec2 SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.5.1

suse advisories SUSE-SU-2017:2920-1SUSE-SU-2017:2908-1SUSE-SU-2017:2525-1SUSE-SU-2017:2389-1SUSE-SU-2017:2342-1SUSE-SU-2017:1990-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-7487 updated cvss 5.6

kernel: Reference counter leak in ipxitf_ioctl resulting into use after free

  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • n/a Linux kernel through 4.11.1

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.