Loop with Unreachable Exit Condition ('Infinite Loop') Affecting libcurl4-32bit package, versions <8.14.1-150600.4.28.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.07% (21st percentile)

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  • Snyk IDSNYK-SLES156-LIBCURL432BIT-12657428
  • published13 Sept 2025
  • disclosed12 Sept 2025

Introduced: 12 Sep 2025

CVE-2025-5399  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 libcurl4-32bit to version 8.14.1-150600.4.28.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcurl4-32bit package and not the libcurl4-32bit package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

Due to a mistake in libcurl's WebSocket code, a malicious server can send a particularly crafted packet which makes libcurl get trapped in an endless busy-loop.

There is no other way for the application to escape or exit this loop other than killing the thread/process.

This might be used to DoS libcurl-using application.

CVSS Base Scores

version 3.1