CVE-2003-0743

High

Description

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.

SeverityHigh
CVSS7.5
Exploit probability93. percentile5.7%
ProductUniversity Of Cambridge Exim
PublishedOct 20, 2003
First seenOct 20, 2003

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
university_of_cambridge exim3.0, 3.3, 3.3.1, 3.3.2, 3.11, 3.12, 3.13, 3.14, 3.15, 3.16, 3.17, 3.18, 3.19, 3.20, 3.21, 3.22, 3.30, 3.31, 3.32, 3.33, 3.34, 3.35, 3.36, 4.10, 4.20—

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CVE-2003-0743 · University Of Cambridge Exim · Dark Radar