CVE-2017-18224

Aliases:DEBIAN-CVE-2017-18224
Advisory lineage Upstream: 0 Downstream: 9
Modified
Published: 12 Mar 2018, 03:00
Last modified:05 Aug 2024, 21:13

Vulnerability Summary

Overall Risk (default)
low
19/100
CVSS Score
4.7 MEDIUM
v3.0 (nvd)
EPSS Score
0.27% LOW
0% probability +0.22%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

12 Mar 2018, 03:00
Published
Vulnerability first disclosed
05 Aug 2024, 21:13
Last Modified
Vulnerability information updated

Description

In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field.

CVSS Metrics

  • v3.0•MEDIUM•Score: 4.7CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v2.0•LOW•Score: 1.9AV:L/AC:M/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 0.27%• Percentile: 19%

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

    < 4.15.4-1 | < 4.15.4-1 | < 4.15.4-1 | < 4.15.4-1

  • linux•linux_kernel

    < 4.15

References (5)