CVE-2005-0021

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 products

Exim, Red Hat

University Of Cambridge Exim

≤ 4.40, 4.41, 4.42

Fix

Available

CVSS 2.0

7.2 HIGH

EPSS

2.6% (84th percentile)

NVD status

Modified

Published

2005-01-06