CVE-2023-42118

HIGH

8.8

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung8.8

SchweregradHIGH

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

AngriffsvektorADJACENT_NETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht5/3/2024

Zuletzt geandert8/7/2025

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

exim:eximlibspf2_project:libspf2

Schwachen (CWE)

CWE-191

Referenzen

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)

IOC Korrelationen

Keine Korrelationen erfasst

This product uses data from the NVD API but is not endorsed or certified by the NVD.