FreeBSD : freeradius -- EAP-TTLS Tunnel Memory Leak Remote DOS Vulnerability (c110eda2-e995-11db-a944-0012f06707f0)
High Nessus Plugin ID 25051
SynopsisThe remote FreeBSD host is missing one or more security-related updates.
DescriptionThe freeradius development team reports :
A malicious 802.1x supplicant could send malformed Diameter format attributes inside of an EAP-TTLS tunnel. The server would reject the authentication request, but would leak one VALUE_PAIR data structure, of approximately 300 bytes. If an attacker performed the attack many times (e.g. thousands or more over a period of minutes to hours), the server could leak megabytes of memory, potentially leading to an 'out of memory' condition, and early process exit.
SolutionUpdate the affected packages.