CVE-2023-42118

HIGH

8.8

Descripcion

Exim libspf2 Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Exim libspf2. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of SPF macros. When parsing SPF macros, the process does not properly validate user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the service account. . Was ZDI-CAN-17578.

Detalles CVE

Puntuacion CVSS v3.18.8

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vector de ataqueADJACENT_NETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado5/3/2024

Ultima modificacion8/7/2025

Fuentenvd

Avistamientos honeypot0

Productos afectados

exim:eximlibspf2_project:libspf2

Debilidades (CWE)

CWE-191

Referencias

https://www.zerodayinitiative.com/advisories/ZDI-23-1472/(zdi-disclosures@trendmicro.com)

http://www.openwall.com/lists/oss-security/2025/03/28/1(af854a3a-2127-422b-91ae-364da2661108)

https://www.zerodayinitiative.com/advisories/ZDI-23-1472/(af854a3a-2127-422b-91ae-364da2661108)

Correlaciones IOC

Sin correlaciones registradas

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