Heap-based buffer overflow in smtp_in.c for Exim 3 (exim3) before 3.36 and Exim 4 (exim4) before 4.21 may allow remote attackers to execute arbitrary code via an invalid (1) HELO or (2) EHLO argument with a large number of spaces followed by a NULL character and a newline, which is not properly trimmed before the "(no argument given)" string is appended to the buffer.
Advisories
Source ID Title
EUVD EUVD EUVD-2003-0734 Heap-based buffer overflow in smtp_in.c for Exim 3 (exim3) before 3.36 and Exim 4 (exim4) before 4.21 may allow remote attackers to execute arbitrary code via an invalid (1) HELO or (2) EHLO argument with a large number of spaces followed by a NULL character and a newline, which is not properly trimmed before the "(no argument given)" string is appended to the buffer.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-08T02:05:12.644Z

Reserved: 2003-09-04T00:00:00

Link: CVE-2003-0743

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2003-10-20T04:00:00.000

Modified: 2025-04-03T01:03:51.193

Link: CVE-2003-0743

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.