CVE-2005-0021

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

02/05/2005

Last modified:

03/04/2025

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.

Impact

Vector 2.0

AV:L/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.20 HIGH
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

7.20

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:university_of_cambridge:exim::::::::		4.40 (including)
cpe:2.3:a:university_of_cambridge:exim:4.41:::::::*
cpe:2.3:a:university_of_cambridge:exim:4.42:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2005-0021

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools