CVE-2016-6198

Aliases:UBUNTU-CVE-2016-6198DEBIAN-CVE-2016-6198
Advisory lineage Upstream: 0 Downstream: 6
Modified
Published: 06 Aug 2016, 20:00
Last modified:06 Aug 2024, 01:22

Vulnerability Summary

Overall Risk (default)
medium
32/100
CVSS Score
5.5 MEDIUM
v3.0 (nvd)
EPSS Score
0.64% LOW
1% probability +0.61%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

06 Aug 2016, 20:00
Published
Vulnerability first disclosed
06 Aug 2024, 01:22
Last Modified
Vulnerability information updated

Description

The filesystem layer in the Linux kernel before 4.5.5 proceeds with post-rename operations after an OverlayFS file is renamed to a self-hardlink, which allows local users to cause a denial of service (system crash) via a rename system call, related to fs/namei.c and fs/open.c.

CVSS Metrics

  • v3.0•MEDIUM•Score: 5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 0.64%• Percentile: 49%

Techniques & Countermeasures

  • CWE-284•Improper Access Control

    The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Affected Systems

  • debian•linux

    < 4.5.5-1 | < 4.5.5-1 | < 4.5.5-1 | < 4.5.5-1

  • ubuntu•linux

    all | < 4.4.0-28.47

  • ubuntu•linux-azure-6.11

    all

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-azure-fde-5.15

    all

  • ubuntu•linux-gcp-6.11

    all

  • ubuntu•linux-gke

    all

  • ubuntu•linux-gkeop

    all

  • ubuntu•linux-gkeop-5.15

    all

  • ubuntu•linux-hwe-6.11

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-lowlatency-hwe-6.11

    all

  • ubuntu•linux-lts-wily

    < 4.2.0-41.48~14.04.1

  • ubuntu•linux-lts-xenial

    < 4.4.0-28.47~14.04.1

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.4.0-1016.22 | all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all | all

  • ubuntu•linux-snapdragon

    < 4.4.0-1019.22

  • linux•linux_kernel

    ≤ 4.5.4

  • oracle•linux

    6

  • oracle•vm_server

    3.4

References (20)