CVE-2021-3672
Estado: ModificadaMedia (5.6)—
A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
- Puntuación base: 5.6
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 2.81%
- Percentil entre todas las CVEs puntuadas: 86
- Fecha de la puntuación: 4/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (17)
C-ares Project — C-aresFedoraproject — FedoraNodejs — Node.jsPgbouncer — PgbouncerRedhat — Enterprise LinuxRedhat — Enterprise Linux Computer NodeRedhat — Enterprise Linux EUSRedhat — Enterprise Linux FOR IBM Z SystemsRedhat — Enterprise Linux FOR IBM Z Systems EUSRedhat — Enterprise Linux FOR Power Little EndianRedhat — Enterprise Linux FOR Power Little Endian EUSRedhat — Enterprise Linux Server AUSRedhat — Enterprise Linux Server TUSRedhat — Enterprise Linux Server Update Services FOR SAP SolutionsRedhat — Enterprise Linux TUSRedhat — Enterprise Linux WorkstationSiemens — Sinec Infrastructure Network Services
CWE
- CWE-79
- CWE-79
Referencias
- https://bugzilla.redhat.com/show_bug.cgi?id=1988342
- https://c-ares.haxx.se/adv_20210810.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://security.gentoo.org/glsa/202401-02
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1988342
- https://c-ares.haxx.se/adv_20210810.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://security.gentoo.org/glsa/202401-02
- https://www.oracle.com/security-alerts/cpujul2022.html
JSON original (NVD)
Mostrar
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