|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.|
|Source||CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)|
|NVD severity||high (attack range: local)|
Vulnerable and fixed packages
The table below lists information on source packages.
|exim4 (PTS)||jessie, jessie (security)||4.84.2-2+deb8u5||fixed|
|stretch, stretch (security)||4.89-2+deb9u3||fixed|
The information below is based on the following data on fixed versions.