Memory corruption issues is Cloudflare zlib implementation (Cloudflare zlib)
En bref
- Source
- NVD
- EPSS
- EPSS 0.24 % · centile 15 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- cloudflare
- Statut NVD
- Modified
Description
Cloudflare version of zlib library was found to be vulnerable to memory corruption issues affecting the deflation algorithm implementation (deflate.c). The issues resulted from improper input validation and heap-based buffer overflow. A local attacker could exploit the problem during compression using a crafted malicious file potentially leading to denial of service of the software. Patches: The issue has been patched in commit 8352d10 https://github.com/cloudflare/zlib/commit/8352d108c05db1bdc5ac3bdf834dad641694c13c . The upstream repository is not affected.
Faiblesses (CWE)
- CWE-20 — Validation d'entrée incorrecte
- CWE-122 — Débordement de tampon sur le tas
- CWE-126 — Buffer Over-read
- CWE-787 — Écriture hors limites
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.0 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L | cloudflare |
| CVSS 3.1 | MEDIUM 4.0 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L | NVD · cna@cloudflare.com (Secondary) |
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2023-59184
- GCVE · GCVE-0-2023-6992
Avis du CERT-FR
- CERTFR-2025-AVI-0661 — Multiples vulnérabilités dans les produits Splunk · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:cloudflare:zlib:*:*:*:*:*:*:*:*< 2023-11-16
Produits affectés
| Produit | Versions |
|---|---|
| Cloudflare · zlib | affected 0 < 8352d10 |
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 |