Gnutls: stack-based buffer overflow in gnutls_pkcs11_token_init() function
CVSS Skor
4.0
EPSS İhtimal
%0.2
Risk Skoru
0.0
Yayın
8 ay önce
Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.
Envanterimdeki Etkisi
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Oturum kontrol ediliyor…
Zafiyet Açıklaması
DayBreach CVE AI Araştırması
CVE-2025-9820 için toplanan üretici, dağıtım, yama ve güvenlik kaynağı kayıtlarını karşılaştırıp kanıt bağlantılı bir açıklama hazırlayalım.
A flaw was found in the GnuTLS library, specifically in the gnutls_pkcs11_token_init() function that handles PKCS#11 token initialization. When a token label longer than expected is processed, the function writes past the end of a fixed-size stack buffer. This programming error can cause the application using GnuTLS to crash or, in certain conditions, be exploited for code execution. As a result, systems or applications relying on GnuTLS may be vulnerable to a denial of service or local privilege escalation attacks.
IMPACT — Etkilenen Ürünler ve Yazılımlar
Affected Products
The following products are affected by CVE-2025-9820 vulnerability. Even if our threat engine is aware of the exact versions of the products that are affected, the information is represented below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | redhat | gnutls | İncele |
| 2 | Red Hat | Red Hat Enterprise Linux 10 | İncele |
| 3 | Red Hat | Red Hat Enterprise Linux 8 | İncele |
| 4 | Red Hat | Red Hat Enterprise Linux 9 | İncele |
| 5 | Red Hat | RHEL-8 based Middleware Containers | İncele |
| 6 | Red Hat | RHEL-8 based Middleware Containers | İncele |
| 7 | Red Hat | RHEL-8 based Middleware Containers | İncele |
| 8 | Red Hat | RHEL-8 based Middleware Containers | İncele |
| 9 | Red Hat | RHEL-8 based Middleware Containers | İncele |
| 10 | Red Hat | RHEL-8 based Middleware Containers | İncele |
| 11 | Red Hat | RHEL-8 based Middleware Containers | İncele |
| 12 | Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 | İncele |
| 13 | Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 | İncele |
| 14 | Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 | İncele |
| 15 | Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 | İncele |
| 16 | Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 | İncele |
| 17 | Red Hat | Red Hat Ceph Storage 8 | İncele |
| 18 | Red Hat | Red Hat Discovery 2 | İncele |
| 19 | Red Hat | Red Hat Discovery 2 | İncele |
| 20 | Red Hat | Red Hat Hardened Images | İncele |
| 21 | Red Hat | Red Hat Insights proxy 1.5 | İncele |
| 22 | Red Hat | Red Hat Update Infrastructure 5 | İncele |
| 23 | Red Hat | Red Hat Update Infrastructure 5 | İncele |
| 24 | Red Hat | Red Hat Update Infrastructure 5 | İncele |
| 25 | Red Hat | Red Hat Update Infrastructure 5 | İncele |
| 26 | Red Hat | Red Hat Enterprise Linux 6 | İncele |
| 27 | Red Hat | Red Hat Enterprise Linux 7 | İncele |
| 28 | Red Hat | Red Hat OpenShift Container Platform 4 | İncele |
RED HAT CSAF/VEX — Ürün Etki Kontrolü
SCORING — CVSS Çoklu Kaynak Skoru
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from various sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 4.0 | CVSS V3_1 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | CVE CNA |
| 4.0 | CVSS V31 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | NVD |
Yama ve İyileştirme Rehberi (Solution)
Solution & Remediation Advisory
İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.
Public exploit ve aktif sömürü durumu
Doğrulanmış exploit istihbaratı
Bu CVE için henüz doğrulanmış public PoC, exploit repository’si veya Metasploit modülü bulunamadı.
Zafiyet Dağılımı ve Saldırı Kalıpları (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-9820 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-9820 weaknesses.
Saldırı Vektörü ve Erişilebilirlik Karakteristiği
Resmi Kaynaklar ve Danışma Bültenleri
İlgili Benzer Açıklar
Bu açığı API ile alın
Etkilenen ürünler, sürüm aralıkları, istismar durumu ve yama bilgisi tek istekte; ücretsiz anahtarla.
curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.daybreach.dev/api/v1/intel/cves/CVE-2025-9820"