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.
Published: 2005-01-06
Score: 7.2 High
EPSS: 2.8% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2005-0022 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.
Ubuntu USN Ubuntu USN USN-56-1 exim4 vulnerabilities
History

No history.

Subscriptions

Redhat Enterprise Linux
University Of Cambridge Exim
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-07T20:57:41.064Z

Reserved: 2005-01-04T00:00:00.000Z

Link: CVE-2005-0021

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2005-05-02T04:00:00.000

Modified: 2026-04-16T00:27:16.627

Link: CVE-2005-0021

cve-icon Redhat

Severity : Moderate

Publid Date: 2005-01-04T00:00:00Z

Links: CVE-2005-0021 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses