Resource Exhaustion Affecting pcs package, versions <0:0.10.18-2.0.1.el8_10.8


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.31% (54th percentile)

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  • Snyk IDSNYK-ORACLE8-PCS-15074245
  • published24 Jan 2026
  • disclosed12 Dec 2025

Introduced: 12 Dec 2025

CVE-2025-67725  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Oracle:8 pcs to version 0:0.10.18-2.0.1.el8_10.8 or higher.
This issue was patched in ELSA-2026-0930.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pcs package and not the pcs package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

Tornado is a Python web framework and asynchronous networking library. In versions 6.5.2 and below, a single maliciously crafted HTTP request can block the server's event loop for an extended period, caused by the HTTPHeaders.add method. The function accumulates values using string concatenation when the same header name is repeated, causing a Denial of Service (DoS). Due to Python string immutability, each concatenation copies the entire string, resulting in O(n²) time complexity. The severity can vary from high if max_header_size has been increased from its default, to low if it has its default value of 64KB. This issue is fixed in version 6.5.3.

CVSS Base Scores

version 3.1