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Fencer Intel
medium 5.5

CVE-2017-5986 json

Race condition in the sctp_wait_for_sndbuf function in net/sctp/socket.c in the Linux kernel before 4.9.11 allows local users to cause a de…

published 2017-02-18 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-15055

cvss
5.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 67%
public exploits
0
none known

Summary

Race condition in the sctp_wait_for_sndbuf function in net/sctp/socket.c in the Linux kernel before 4.9.11 allows local users to cause a denial of service (assertion failure and panic) via a multithreaded application that peels off an association in a certain buffer-full state.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 4.9.10-1

debian advisories DEBIAN-CVE-2017-5986

  • linux Ubuntu 14.04 LTS 3.13.0-117.164
  • linux Ubuntu 16.04 LTS 4.4.0-75.96
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1016.25
  • linux-gke Ubuntu 16.04 LTS 4.4.0-1012.12
  • linux-hwe Ubuntu 16.04 LTS 4.8.0-56.61~16.04.1
  • linux-raspi2 Ubuntu 16.04 LTS 4.4.0-1054.61
  • linux-lts-xenial Ubuntu 14.04 LTS 4.4.0-75.96~14.04.1
  • linux-snapdragon Ubuntu 16.04 LTS 4.4.0-1057.61

ubuntu advisories UBUNTU-CVE-2017-5986

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 RHEL 7 3.10.0-514.21.1.el7
  • perf RHEL 7 3.10.0-514.21.1.el7
  • python-perf RHEL 7 3.10.0-514.21.1.el7
  • kernel-kdump RHEL 7 3.10.0-514.21.1.el7
  • kernel-tools RHEL 7 3.10.0-514.21.1.el7
  • kernel-tools-libs RHEL 7 3.10.0-514.21.1.el7
  • kernel-bootwrapper RHEL 7 3.10.0-514.21.1.el7
  • kernel-abi-whitelists RHEL 7 3.10.0-514.21.1.el7

red hat advisories RHSA-2017:1308

  • kernel-ec2 SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.5.1
  • kernel-pae SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.5.1
  • kernel-xen SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.5.1
  • kernel-syms SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.5.1
  • kernel-trace SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.5.1
  • kernel-source SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.5.1
  • kernel-default SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3 3.0.101-0.47.106.5.1
  • kernel-rt SLE Real Time 11 SP4 3.0.101.rt130-69.5.1

suse advisories SUSE-SU-2017:2525-1SUSE-SU-2017:2342-1SUSE-SU-2017:1990-1SUSE-SU-2017:1360-1SUSE-SU-2017:1301-1SUSE-SU-2017:1247-1

  • linux Arch Linux 4.9.11-1
  • linux-zen Arch Linux 4.9.11-2
  • linux-lts Arch Linux 4.9.13-1

arch linux advisories AVG-178AVG-186AVG-188

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-2017-5986 updated cvss 5.5

kernel: Reachable BUG_ON from userspace in sctp_wait_for_sndbuf

  • 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 kernel-rt, kernel-rt-kvm, kernel-rt-trace, kernel-rt-debug-kvm, kernel-rt-trace-kvm Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-514.21.1.el7, kernel 3.10.0-514.21.1.el7, python-perf 3.10.0-514.21.1.el7, kernel-tools 3.10.0-514.21.1.el7, kernel-tools-libs 3.10.0-514.21.1.el7, kernel-abi-whitelists 3.10.0-514.21.1.el7, +1 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-514.21.1.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-514.21.1.el7, kernel 3.10.0-514.21.1.el7, python-perf 3.10.0-514.21.1.el7, kernel-tools 3.10.0-514.21.1.el7, kernel-tools-libs 3.10.0-514.21.1.el7, kernel-abi-whitelists 3.10.0-514.21.1.el7, +1 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-514.21.1.el7 Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-514.21.1.el7, kernel 3.10.0-514.21.1.el7, python-perf 3.10.0-514.21.1.el7, kernel-kdump 3.10.0-514.21.1.el7, kernel-tools 3.10.0-514.21.1.el7, kernel-tools-libs 3.10.0-514.21.1.el7, +6 more Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-514.21.1.el7, kernel-debuginfo-common-x86_64 3.10.0-514.21.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-514.21.1.el7
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-514.21.1.el7, kernel 3.10.0-514.21.1.el7, python-perf 3.10.0-514.21.1.el7, kernel-tools 3.10.0-514.21.1.el7, kernel-tools-libs 3.10.0-514.21.1.el7, kernel-abi-whitelists 3.10.0-514.21.1.el7, +1 more Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-514.21.1.el7
    fixed: vendor fix RHSA-2017:1308

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

1.16% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 5.5 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 7.1 AV:N/AC:M/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
  • CWE-617 Reachable Assertion
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.