National Vulnerability Database

National Vulnerability Database

National Vulnerability

CVE-2003-1557 Detail


Off-by-one buffer overflow in spamc of SpamAssassin 2.40 through 2.43, when using BSMTP mode ("-B"), allows remote attackers to execute arbitrary code via email containing headers with leading "." characters.

Source:  MITRE      Last Modified:  12/31/2003

Quick Info

CVE Dictionary Entry:
Original release date:
Last revised:


CVSS Severity (version 2.0):
CVSS v2 Base Score:
7.6 HIGH
(AV:N/AC:H/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore:
Exploitability Subscore:
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Not required to exploit
Impact Type:
Provides administrator access, Allows complete confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (04/04/2008)

Not vulnerable. This issue did not affect the versions of SpamAssassin as shipped with Red Hat Enterprise Linux 3, 4, or 5.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to

Hyperlink Resource Type Source Name External Source BUGTRAQ 20030123 SpamAssassin / spamc+BSMTP remote buffer overflow External Source GENTOO GLSA-200302-01 External Source BUGTRAQ 20030204 Re: GLSA: Mail-SpamAssasin Patch External Source BID 6679 External Source XF spamassassin-spamc-offbyone-bo(11154)

Technical Details

Vulnerability Type (View All)

Change History 2 change records found - show changes