National Cyber-Alert System
Vulnerability Summary for CVE-2005-0021
Original release date:05/02/2005
Last revised:09/05/2008
Source:
US-CERT/NIST
Overview
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
CVSS Severity (version 2.0):
Impact Subscore:
10.0
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: 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
References to Advisories, Solutions, and Tools
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US-CERT Vulnerability Note: VU#132992
Name: VU#132992
Type: Patch Information
External Source: REDHAT
Name: RHSA-2005:025
Type: Patch Information
External Source: IDEFENSE
Name: 20050114 Exim dns_buld_reverse() Buffer Overflow Vulnerability
Type: Advisory
External Source: IDEFENSE
Name: 20050107 Exim host_aton() Buffer Overflow Vulnerability
Type: Advisory
External Source: MLIST
Name: [exim] 20050104 2 smallish security issues
External Source: DEBIAN
Name: DSA-637
Type: Advisory
External Source: DEBIAN
Name: DSA-635
Type: Advisory
External Source: GENTOO
Name: GLSA-200501-23
Type: Advisory
External Source: CONFIRM
Name: http://ftp6.us.freebsd.org/pub/mail/exim/ChangeLogs/ChangeLog-4.44
