This report was translated by AI; nobody has reviewed the translation yet. Original language: Czech.
[TLP:CLEAR] Curl fixes 1 vulnerability
Curl version 8.14.1 fixes a vulnerability in the libcurl library [1].
An unauthenticated remote attacker can, due to a faulty WebSocket implementation in the libcurl library, trigger an infinite loop by sending specially crafted packets and thus potentially perform a DoS attack on dependent applications [1]. The system is not vulnerable if the automatic reply function is disabled using the 'CURLWS_NOAUTOPONG' option. The curl tool is not affected by this vulnerability.
The vulnerability is present in product:
- *:curl; >=8.13.0, <=8.14.0;
CVSS: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
More information:
- CVE-2025-5399 at cve.org, NVD
- CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') at cwe.mitre.org
The vulnerability was publicly disclosed 4. 6. 2025.
By CESNET, z.s.p.o. Michaela Ručková on 4. 6. 2025.