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Fencer Intel
medium 4.3

CVE-2016-10208 json

The ext4_fill_super function in fs/ext4/super.c in the Linux kernel through 4.9.8 does not properly validate meta block groups, which allow…

published 2017-02-06 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-1393

cvss
4.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

The ext4_fill_super function in fs/ext4/super.c in the Linux kernel through 4.9.8 does not properly validate meta block groups, which allows physically proximate attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image.

Patch / fix

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

debian advisories DEBIAN-CVE-2016-10208

  • linux Ubuntu 14.04 LTS 3.13.0-157.207
  • linux Ubuntu 16.04 LTS 4.4.0-67.88
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1009.18
  • linux-hwe Ubuntu 16.04 LTS 4.10.0-32.36~16.04.1
  • linux-raspi2 Ubuntu 16.04 LTS 4.4.0-1048.55
  • linux-lts-xenial Ubuntu 14.04 LTS 4.4.0-67.88~14.04.1
  • linux-snapdragon Ubuntu 16.04 LTS 4.4.0-1051.55

ubuntu advisories UBUNTU-CVE-2016-10208

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-2017:1308RHSA-2017:1297RHSA-2017:1298

  • kernel-ec2 SLE Module for Public Cloud 12 3.12.74-60.64.40.1
  • kernel-xen SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 3.12.74-60.64.40.1
  • kernel-syms SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 3.12.74-60.64.40.1
  • kernel-source SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 3.12.74-60.64.40.1
  • kernel-default SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +1 more 3.12.74-60.64.40.1
  • kernel-obs-build SLE Software Development Kit 12 SP1 3.12.74-60.64.40.1
  • kernel-ec2 SLE Module for Public Cloud 12 3.12.61-52.72.1
  • kgraft-patch-SLE12-SP1_Update_15 SLE Live Patching 12 1-4.1

suse advisories SUSE-SU-2017:1360-1SUSE-SU-2017:1247-1

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-2016-10208 updated cvss 6.2

kernel: EXT4 memory corruption / SLAB out-of-bounds read

  • 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
    fixed: vendor fix RHSA-2017:1308
  • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-514.21.1.rt56.438.el7, kernel-rt-kvm 3.10.0-514.21.1.rt56.438.el7, kernel-rt-trace 3.10.0-514.21.1.rt56.438.el7, kernel-rt-debug-kvm 3.10.0-514.21.1.rt56.438.el7, kernel-rt-trace-kvm 3.10.0-514.21.1.rt56.438.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-514.21.1.rt56.438.el7 Red Hat Enterprise Linux Realtime (v. 7) kernel-rt 3.10.0-514.21.1.rt56.438.el7, kernel-rt-trace 3.10.0-514.21.1.rt56.438.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-514.21.1.rt56.438.el7
    fixed: vendor fix RHSA-2017:1298
  • 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 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 MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.10.0-514.rt56.221.el6rt, kernel-rt-trace 3.10.0-514.rt56.221.el6rt, kernel-rt-vanilla 3.10.0-514.rt56.221.el6rt, kernel-rt-firmware 3.10.0-514.rt56.221.el6rt, kernel-rt-debuginfo-common-x86_64 3.10.0-514.rt56.221.el6rt
    fixed: vendor fix RHSA-2017:1297
  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    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

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 4.3 CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C

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.