JLine: Unauthenticated Remote DoS via Unbounded Telnet NAWS Terminal Geometry (jline jline3)
En bref
- Source
- NVD
- EPSS
- EPSS 0.60 % · centile 48 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- GitHub_M
- Statut NVD
- Analyzed
Rechercher sur…
Description
JLine is a Java library for handling console input. Prior to 3.30.14, 4.0.16, and 4.2.1, the JLine3 Telnet server remote-telnet module does not apply an upper bound to terminal dimensions received via the Telnet NAWS option, and TelnetIO.handleNAWS() in TelnetIO.java:856-879 reads client-supplied width and height as 16-bit unsigned integers and passes values such as 65535x65535 to setTerminalGeometry(), allowing an unauthenticated remote attacker to repeatedly alternate values and trigger continuous expensive rendering work that causes CPU exhaustion and denial of service. This issue is fixed in versions 3.30.14, 4.0.16, and 4.2.1.
Faiblesses (CWE)
- CWE-400 — Consommation de ressources non maîtrisée (déni de service)
Références
- https://github.com/jline/jline3/security/advisories/GHSA-2r2c-cx56-8933
- https://github.com/jline/jline3/pull/2000
- https://github.com/jline/jline3/commit/3ea9cad8699714dc072fade29d36be0d1e23d708
- https://github.com/jline/jline3/commit/733eb353dca7b0ea0252e724445b6defa29c393e
- https://github.com/jline/jline3/commit/86b7ba7801988aadb1a67555629522a71d603bd3
- https://github.com/jline/jline3/releases/tag/4.0.16
- https://github.com/jline/jline3/releases/tag/4.2.1
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | GitHub_M |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · security-advisories@github.com (Secondary) |
Avis
- GHSA-2r2c-cx56-8933 — JLine3 Telnet server: Unauthenticated Remote DoS via Unbounded Telnet NAWS Terminal Geometry
Références européennes
- ENISA EUVD · EUVD-2026-45342
- GCVE · GCVE-0-2026-56741
Avis du CERT-FR
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:jline:jline:*:*:*:*:*:*:*:*< 3.30.14cpe:2.3:a:jline:jline:*:*:*:*:*:*:*:*≥ 4.0.0 < 4.0.16cpe:2.3:a:jline:jline:*:*:*:*:*:*:*:*≥ 4.1.0 < 4.2.1
Produits affectés
| Produit | Versions |
|---|---|
| jline · jline3 | affected < 3.30.14 ; affected >= 4.0.0, < 4.0.16 ; affected >= 4.1.0, < 4.2.1 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |