CVEvulnerability
CVE-2013-6890
5.0 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2013-12-23
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-287
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 configurations
• debian debian linux 6.0
• debian debian linux 7.0
• debian debian linux 7.1
• fedoraproject fedora
• phil schwartz denyhosts 2.6
Related
Weakness · CWE (1)
- CWE-287 Improper Authentication weakness
References
- http://seclists.org/oss-sec/2013/q4/535 seclists.org
- http://secunia.com/advisories/56239 Vendor Advisory
- http://www.debian.org/security/2013/dsa-2826 www.debian.org
- https://bugzilla.redhat.com/show_bug.cgi?id=1045982 bugzilla.redhat.com
- http://seclists.org/oss-sec/2013/q4/535 seclists.org
- http://secunia.com/advisories/56239 Vendor Advisory
- http://www.debian.org/security/2013/dsa-2826 www.debian.org
- https://bugzilla.redhat.com/show_bug.cgi?id=1045982 bugzilla.redhat.com