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.
Metrics
CVSS 2.0 5.0/10
AV:N/AC:L/Au:N/C:N/I:N/A:PWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://seclists.org/oss-sec/2013/q4/535
- http://secunia.com/advisories/56239Vendor Advisory
- http://www.debian.org/security/2013/dsa-2826
- https://bugzilla.redhat.com/show_bug.cgi?id=1045982
- http://seclists.org/oss-sec/2013/q4/535
- http://secunia.com/advisories/56239Vendor Advisory
- http://www.debian.org/security/2013/dsa-2826
- https://bugzilla.redhat.com/show_bug.cgi?id=1045982
Timeline
- Published
- Dec 23, 2013
- Last modified
- Jun 17, 2026
- NVD status
- Modified