strongSwan 4.5.0 < 6.0.5 EAP-TTLS AVP Parsing Integer Underflow (strongSwan strongSwan)
En bref
- Source
- NVD
- EPSS
- EPSS 1.05 % · centile 64 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- VulnCheck
- Statut NVD
- Deferred
Rechercher sur…
Description
strongSwan versions 4.5.0 prior to 6.0.5 contain an integer underflow vulnerability in the EAP-TTLS AVP parser that allows unauthenticated remote attackers to cause a denial of service by sending crafted AVP data with invalid length fields during IKEv2 authentication. Attackers can exploit the failure to validate AVP length fields before subtraction to trigger excessive memory allocation or NULL pointer dereference, crashing the charon IKE daemon.
Faiblesses (CWE)
Références
- https://www.strongswan.org/blog/2026/03/23/strongswan-vulnerability-(cve-2026-25075).html
- https://www.strongswan.org/blog/2026/03/23/strongswan-6.0.5-released.html
- https://y637f9qq2x.com/posts/cve-2026-25075/
- https://www.vulncheck.com/advisories/strongswan-eap-ttls-avp-parsing-integer-underflow
- https://lists.debian.org/debian-lts-announce/2026/03/msg00016.html
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 4.0 | HIGH 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 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 | VulnCheck |
| CVSS 4.0 | HIGH 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD · disclosure@vulncheck.com (Secondary) |
| 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 · disclosure@vulncheck.com (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-14477
- GCVE · GCVE-0-2026-25075
Avis du CERT-FR
- CERTFR-2026-AVI-1021 — Multiples vulnérabilités dans Stormshield Network Security · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0362 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0344 — Vulnérabilité dans strongSwan · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| strongSwan · strongSwan | affected 4.5.0 < 6.0.5 |
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 |