Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian | Debian Linux | 6.0 |
| Fedoraproject | Fedora | All versions |
| Phil Schwartz | Denyhosts | 2.6 |
Related Weaknesses (CWE)
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
FAQ
What is CVE-2013-6890?
CVE-2013-6890 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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 na...
How severe is CVE-2013-6890?
CVE-2013-6890 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2013-6890?
Check the references section above for vendor advisories and patch information. Affected products include: Debian Debian Linux, Fedoraproject Fedora, Phil Schwartz Denyhosts.