Description
DenyHosts 2.5 does not properly parse sshd log files, which allows remote attackers to add arbitrary hosts to the /etc/hosts.deny file and cause a denial of service by adding arbitrary IP addresses to the sshd log file, as demonstrated by logging in via ssh with a login name containing certain strings with an IP address, which is not properly handled by a regular expression.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://bugs.gentoo.org/show_bug.cgi?id=157163 ↗
- http://www.vupen.com/english/advisories/2006/4876 ↗
- http://secunia.com/advisories/23236 ↗
- https://exchange.xforce.ibmcloud.com/vulnerabilities/30761 ↗
- http://www.securityfocus.com/bid/21468 ↗
- http://secunia.com/advisories/23603 ↗
- http://security.gentoo.org/glsa/glsa-200701-01.xml ↗