CVE-2015-9253

Advisory lineage Upstream: 0 Downstream: 7
Modified
Published: 19 Feb 2018, 19:00
Last modified:06 Aug 2024, 08:43

Vulnerability Summary

Overall Risk (default)
medium
38/100
CVSS Score
6.8 MEDIUM
v2.0 (nvd)
EPSS Score
3% LOW
3% probability +0.04%
KEV
Not listed
Ransomware
No reports
Public exploits
4 found
Dark Web
Not detected

Timeline

19 Feb 2018, 19:00
Published
Vulnerability first disclosed
06 Aug 2024, 08:43
Last Modified
Vulnerability information updated

Description

An issue was discovered in PHP 7.3.x before 7.3.0alpha3, 7.2.x before 7.2.8, and before 7.1.20. The php-fpm master process restarts a child process in an endless loop when using program execution functions (e.g., passthru, exec, shell_exec, or system) with a non-blocking STDIN stream, causing this master process to consume 100% of the CPU, and consume disk space with a large volume of error logs, as demonstrated by an attack by a customer of a shared-hosting facility.

CVSS Metrics

  • v3.0•MEDIUM•Score: 6.5CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 6.8AV:N/AC:L/Au:S/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 3.00%• Percentile: 87%

Techniques & Countermeasures

  • CWE-400•Uncontrolled Resource Consumption

    The product does not properly control the allocation and maintenance of a limited resource.

Affected Systems

  • Unknown•PHP

    < 7.1.20 | ≥ 7.2.0, < 7.2.8 | 7.3.0:alpha1 | 7.3.0:alpha2

References (8)