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.
CVSS Metrics
- Vector
- AV:N/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- network
- Access Cmplx
- low
- Auth
- none
- Confidentiality
- partial
- Integrity
- partial
- Availability
- partial
- Weaknesses
- NVD-CWE-Other
Metadata
- Primary Vendor
- UNIVERSITY_OF_CAMBRIDGE
- Published
- 10/20/2003
- Last Modified
- 4/3/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
university_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : eximuniversity_of_cambridge : exim
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