Vulnerabilidades / CVE-2023-42116

crítica

CVE-2023-42116

Exim: SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability

Publicada Modificada CWE 121
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
Red Hat8.1CVSS:3.1/AV:N/AC:H/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 Red Hat (alta), Amazon (alta), Ubuntu (media).

Descripción

Exim SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of NTLM challenge requests. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. . Was ZDI-CAN-17515.

Paquetes afectados y versiones corregidas

FuentePaqueteCorregido en
alpine 3.17exim4.96.1-r0
alpine 3.18exim4.96.1-r0
alpine 3.19exim4.96.1-r0
alpine 3.20exim4.96.1-r0
alpine 3.21exim4.96.1-r0
alpine 3.22exim4.96.1-r0
alpine 3.23exim4.96.1-r0
alpine 3.24exim4.96.1-r0
alpine edgeexim4.96.1-r0
amazon linux 1exim, exim-debuginfo, exim-greylist y 3 más4.92-1.39.amzn1
chainguardexim4.96.1-r0
debian 10exim44.92-8+deb10u8
Mostrar las 34 entradas de 29 fuentes
FuentePaqueteCorregido en
alpine 3.17exim4.96.1-r0
alpine 3.18exim4.96.1-r0
alpine 3.19exim4.96.1-r0
alpine 3.20exim4.96.1-r0
alpine 3.21exim4.96.1-r0
alpine 3.22exim4.96.1-r0
alpine 3.23exim4.96.1-r0
alpine 3.24exim4.96.1-r0
alpine edgeexim4.96.1-r0
amazon linux 1exim4.92-1.39.amzn1
amazon linux 1exim-debuginfo4.92-1.39.amzn1
amazon linux 1exim-greylist4.92-1.39.amzn1
amazon linux 1exim-mon4.92-1.39.amzn1
amazon linux 1exim-mysql4.92-1.39.amzn1
amazon linux 1exim-pgsql4.92-1.39.amzn1
chainguardexim4.96.1-r0
debian 10exim44.92-8+deb10u8
debian 11exim44.94.2-7+deb11u1
debian 12exim44.96-15+deb12u2
debian 13exim44.97~RC1-2
debian 14exim44.97~RC1-2
echoexim44.96-15+deb12u2
rapidfort ubuntu 20.04exim40:4.95-4ubuntu2.3
rapidfort ubuntu 22.04exim40:4.95-4ubuntu2.3
rapidfort ubuntu 24.04exim40:4.95-4ubuntu2.3
ubuntu 14.04-ESMexim44.82-3ubuntu2.4+esm6
ubuntu 16.04-ESMexim44.86.2-2ubuntu2.6+esm4
ubuntu 18.04-ESMexim44.90.1-1ubuntu1.10+esm1
ubuntu 20.04exim44.93-13ubuntu1.8
ubuntu 20.04-ESMexim44.93-13ubuntu1.8
ubuntu 22.04exim44.95-4ubuntu2.3
ubuntu 23.04exim44.96-14ubuntu1.2
ubuntu 23.10exim44.96-17ubuntu2
wolfiexim4.96.1-r0

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.