CVEvulnerability

CVE-2005-0021

7.2 HIGH Published 2005-05-02 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2005-05-02
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C

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.

Affected configurations

• university of cambridge exim (<= 4.40) • university of cambridge exim 4.41 • university of cambridge exim 4.42

References