CVE-2005-0021

Summary

CVECVE-2005-0021
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2005-05-02 04:00:00 UTC
Updated2025-04-03 01:03:51 UTC
DescriptionMultiple buffer overflows in Exim before 4.43 may allow attackers to execute arbitrary code via (1) an IPv6 address with more than 8 components, as demonstrated using the -be command line option, which triggers an overflow in the host_aton function, or (2) the -bh command line option or dnsdb PTR lookup, which triggers an overflow in the dns_build_reverse function.

Risk And Classification

Primary CVSS: v2.0 7.2 from [email protected]

AV:L/AC:L/Au:N/C:C/I:C/A:C

Problem Types: NVD-CWE-Other | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:L/AC:L/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application University Of Cambridge Exim 4.41 All All All
Application University Of Cambridge Exim 4.42 All All All
Application University Of Cambridge Exim All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Debian -- Security Information -- DSA-635-1 exim af854a3a-2127-422b-91ae-364da2661108 www.debian.org Vendor Advisory
Accenture | Let there be change af854a3a-2127-422b-91ae-364da2661108 www.idefense.com Exploit, Vendor Advisory
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
[exim] 2 smallish security issues af854a3a-2127-422b-91ae-364da2661108 www.exim.org
US-CERT Vulnerability Note VU#132992 af854a3a-2127-422b-91ae-364da2661108 www.kb.cert.org Patch, US Government Resource
Gentoo Linux Documentation -- Exim: Two buffer overflows af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org Vendor Advisory
Accenture | Let there be change af854a3a-2127-422b-91ae-364da2661108 www.idefense.com Vendor Advisory
rhn.redhat.com | Red Hat Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com Patch
Debian -- Security Information -- DSA-637-1 exim-tls af854a3a-2127-422b-91ae-364da2661108 www.debian.org Vendor Advisory
404 Not Found af854a3a-2127-422b-91ae-364da2661108 ftp6.us.freebsd.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report