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CVE-2005-0021 Details

Description

Multiple 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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://ftp6.us.freebsd.org/pub/mail/exim/ChangeLogs/ChangeLog-4.44	CVE
http://security.gentoo.org/glsa/glsa-200501-23.xml	CVE	Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10347	CVE
http://www.debian.org/security/2005/dsa-635	CVE	Vendor Advisory
http://www.debian.org/security/2005/dsa-637	CVE	Vendor Advisory
http://www.exim.org/mail-archives/exim-users/Week-of-Mon-20050103/msg00028.html	CVE
http://www.idefense.com/application/poi/display?id=179&type=vulnerabilities	CVE	Vendor Advisory
http://www.idefense.com/application/poi/display?id=183&type=vulnerabilities	CVE	ExploitVendor Advisory
http://www.kb.cert.org/vuls/id/132992	CVE	PatchUS Government Resource
http://www.redhat.com/support/errata/RHSA-2005-025.html	CVE	Patch
http://ftp6.us.freebsd.org/pub/mail/exim/ChangeLogs/ChangeLog-4.44	[email protected]
http://security.gentoo.org/glsa/glsa-200501-23.xml	[email protected]	Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10347	[email protected]
http://www.debian.org/security/2005/dsa-635	[email protected]	Vendor Advisory
http://www.debian.org/security/2005/dsa-637	[email protected]	Vendor Advisory
http://www.exim.org/mail-archives/exim-users/Week-of-Mon-20050103/msg00028.html	[email protected]
http://www.idefense.com/application/poi/display?id=179&type=vulnerabilities	[email protected]	Vendor Advisory
http://www.idefense.com/application/poi/display?id=183&type=vulnerabilities	[email protected]	ExploitVendor Advisory
http://www.kb.cert.org/vuls/id/132992	[email protected]	PatchUS Government Resource
http://www.redhat.com/support/errata/RHSA-2005-025.html	[email protected]	Patch

see all 20 references

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-Other	Weakness Not in a Standard CWE Category	[email protected]

Affected Products

Product	Versions
university of cambridge exim	<= 4.40 4.41 4.42
CPE cpe:2.3:a:university_of_cambridge:exim:::::::: cpe:2.3:a:university_of_cambridge:exim:4.41:::::::* cpe:2.3:a:university_of_cambridge:exim:4.42:::::::* Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 16, 2026	CVE Modified	[email protected]
Apr 16, 2026		[email protected]
Nov 20, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Oct 11, 2017	CVE Modified	[email protected]
May 13, 2005	Initial Analysis	[email protected]