CVE-2017-18249

Aliases:UBUNTU-CVE-2017-18249DEBIAN-CVE-2017-18249
Advisory lineage Upstream: 0 Downstream: 11
Modified
Published: 26 Mar 2018, 20:00
Last modified:05 Aug 2024, 21:13

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7 HIGH
v3.0 (nvd)
EPSS Score
0.31% LOW
0% probability +0.24%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

26 Mar 2018, 20:00
Published
Vulnerability first disclosed
05 Aug 2024, 21:13
Last Modified
Vulnerability information updated

Description

The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads.

CVSS Metrics

  • v3.0•HIGH•Score: 7CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 4.4AV:L/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.31%• Percentile: 24%

Techniques & Countermeasures

  • CWE-362•Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

    The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Affected Systems

  • debian•linux

    < 4.12.6-1 | < 4.12.6-1 | < 4.12.6-1 | < 4.12.6-1

  • ubuntu•linux

    all | < 4.4.0-145.171

  • ubuntu•linux-aws

    < 4.4.0-1040.43 | < 4.4.0-1079.89

  • ubuntu•linux-azure

    < 4.13.0-1005.7

  • ubuntu•linux-azure-6.11

    all

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-azure-fde-5.15

    all

  • ubuntu•linux-fips

    < 4.4.0-1008.10

  • ubuntu•linux-gcp

    < 4.13.0-1002.5

  • ubuntu•linux-gcp-6.11

    all

  • ubuntu•linux-gke

    all

  • ubuntu•linux-hwe

    < 4.13.0-32.35~16.04.1

  • ubuntu•linux-hwe-6.11

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1043.49

  • ubuntu•linux-lowlatency-hwe-6.11

    all

  • ubuntu•linux-lts-xenial

    < 4.4.0-144.170~14.04.1

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.4.0-1106.114 | all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all | all

  • ubuntu•linux-snapdragon

    < 4.4.0-1110.115 | < 4.15.0-1053.57

  • debian•debian_linux

    8.0

  • linux•linux_kernel

    < 4.12

References (11)