CVE-2021-4209
GnuTLS
MEDIUM 6.5
En bref
- Source
- NVD
- EPSS
- EPSS 1.91 % · centile 80 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- redhat
- Statut NVD
- Modified
Description
A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.
Faiblesses (CWE)
- CWE-476 — Déréférencement de pointeur nul
Références
- https://gitlab.com/gnutls/gnutls/-/issues/1306
- https://bugzilla.redhat.com/show_bug.cgi?id=2044156
- https://access.redhat.com/security/cve/CVE-2021-4209
- https://gitlab.com/gnutls/gnutls/-/merge_requests/1503
- https://gitlab.com/gnutls/gnutls/-/commit/3db352734472d851318944db13be73da61300568
- https://security.netapp.com/advisory/ntap-20220915-0005/
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2021-34067
- GCVE · GCVE-0-2021-4209
Avis du CERT-FR
- CERTFR-2023-AVI-1015 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*< 3.7.3cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:*cpe:2.3:a:netapp:hci_bootstrap_os:-:*:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| GnuTLS | affected Fixed in gnutls v3.7.3 |
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 |