|Description||denyhosts 2.6 uses an incorrect regular expression when analyzing authentication logs, which allows remote attackers to cause a denial of service (incorrect block of IP addresses) via crafted login names.|
|Source||CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)|
|NVD severity||medium (attack range: remote)|
Vulnerable and fixed packages
The table below lists information on source packages.
|denyhosts (PTS)||wheezy (security), wheezy||2.6-10+deb7u3||fixed|
The information below is based on the following data on fixed versions.
Check. Originally fixed in 2.6-10.1 but denyhosts introduced in unstable possibly without fix