Vulnerabilidades / CVE-2020-8794

crítica

CVE-2020-8794

OpenSMTPD before 6.6.4 allows remote code execution because of an out- ...

Publicada Modificada CWE 125
En la Trivy database desde, como mínimo, el 24 oct 2026, 07:11 UTCNo consta cuándo entró antes de ese build.

Severidad por fuente

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

La etiqueta propia de Trivy es CRITICAL. Crítica según NVD. Más baja según Ubuntu (alta).

Descripción

OpenSMTPD before 6.6.4 allows remote code execution because of an out-of-bounds read in mta_io in mta_session.c for multi-line replies. Although this vulnerability affects the client side of OpenSMTPD, it is possible to attack a server because the server code launches the client code during bounce handling.

Paquetes afectados y versiones corregidas

FuentePaqueteCorregido en
alpine 3.13opensmtpd-extras6.6.4-r0
alpine 3.14opensmtpd-extras6.6.4-r0
alpine 3.15opensmtpd-extras6.6.4-r0
alpine 3.16opensmtpd-extras6.6.4-r0
alpine 3.17opensmtpd-extras6.6.4-r0
alpine 3.18opensmtpd-extras6.6.4-r0
alpine 3.19opensmtpd-extras6.6.4-r0
alpine 3.20opensmtpd-extras6.6.4-r0
debian 10opensmtpd6.0.3p1-5+deb10u4
debian 11opensmtpd6.6.4p1-1
debian 12opensmtpd6.6.4p1-1
debian 13opensmtpd6.6.4p1-1
Mostrar las 33 entradas de 33 fuentes
FuentePaqueteCorregido en
alpine 3.13opensmtpd-extras6.6.4-r0
alpine 3.14opensmtpd-extras6.6.4-r0
alpine 3.15opensmtpd-extras6.6.4-r0
alpine 3.16opensmtpd-extras6.6.4-r0
alpine 3.17opensmtpd-extras6.6.4-r0
alpine 3.18opensmtpd-extras6.6.4-r0
alpine 3.19opensmtpd-extras6.6.4-r0
alpine 3.20opensmtpd-extras6.6.4-r0
debian 10opensmtpd6.0.3p1-5+deb10u4
debian 11opensmtpd6.6.4p1-1
debian 12opensmtpd6.6.4p1-1
debian 13opensmtpd6.6.4p1-1
debian 14opensmtpd6.6.4p1-1
debian 9opensmtpd6.0.2p1-2+deb9u3
echoopensmtpd6.6.4p1-1
ubuntu 16.04-ESMopensmtpd5.7.3p2-1ubuntu0.1~esm2
ubuntu 18.04opensmtpd6.0.3p1-1ubuntu0.2
ubuntu 18.04-ESMopensmtpd6.0.3p1-1ubuntu0.2
ubuntu 19.10opensmtpd6.0.3p1-6ubuntu0.2
ubuntu 20.04opensmtpd6.6.4p1-1
ubuntu 20.04-ESMopensmtpd6.6.4p1-1
ubuntu 20.10opensmtpd6.6.4p1-1
ubuntu 21.04opensmtpd6.6.4p1-1
ubuntu 21.10opensmtpd6.6.4p1-1
ubuntu 22.04opensmtpd6.6.4p1-1
ubuntu 22.10opensmtpd6.6.4p1-1
ubuntu 23.04opensmtpd6.6.4p1-1
ubuntu 23.10opensmtpd6.6.4p1-1
ubuntu 24.04opensmtpd6.6.4p1-1
ubuntu 24.10opensmtpd6.6.4p1-1
ubuntu 25.04opensmtpd6.6.4p1-1
ubuntu 25.10opensmtpd6.6.4p1-1
ubuntu 26.04opensmtpd6.6.4p1-1

Referencias

Las 14 referencias

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.