CVE-2013-6890

NameCVE-2013-6890
Descriptiondenyhosts 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.
SourceCVE (at NVD; LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-2826-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
denyhosts (PTS)wheezy (security), wheezy2.6-10+deb7u3fixed
sid2.10-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
denyhostssource(unstable)2.6-10.1medium
denyhostssourcesqueeze2.6-7+deb6u2mediumDSA-2826-1
denyhostssourcewheezy2.6-10+deb7u2mediumDSA-2826-1

Notes

Check. Originally fixed in 2.6-10.1 but denyhosts introduced in unstable possibly without fix

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