CVE-2013-6890

high

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.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1045982

http://www.debian.org/security/2013/dsa-2826

http://secunia.com/advisories/56239

http://seclists.org/oss-sec/2013/q4/535

Details

Source: Mitre, NVD

Published: 2013-12-23

Updated: 2013-12-24

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High