← Back

CVE-2013-6890

nvd nist
Published: Dec 23, 2013Modified: Apr 29, 2026

JSON object

Loading...
5.0
Vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Exploitability: 10.0 / Impact: 2.9
Source: NVD

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.

Affected (5)

Debian
1 product
Debian Linux
Fedoraproject
1 product
Fedora
Phil Schwartz
1 product
Denyhosts
Configuration A
4 vulnerable
Vulnerable SoftwareAffected Versions
Debian
Debian Linux
Version 6.0
Debian Linux
Version 7.0
Debian Linux
Version 7.1
Fedora
All versions
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Denyhosts
Version 2.6

Related CWEs

CWE-287
Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

References (8)

Source: cve@mitre.org
Source: cve@mitre.org
Vendor Advisory
Source: cve@mitre.org
Source: cve@mitre.org
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.