VulnerabilityModified
CVE-2013-6890
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.
MEDIUM 5.0EPSS 8.90%
Does this matter?
Lower severity and a low EPSS score (8.90%). Track it; it rarely justifies an emergency change on its own.
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 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 8.90% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- debian/debian linux · fedoraproject/fedora · phil schwartz/denyhosts
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.