Cisco Linksys WRT54G POST Request Malformed Content Length DoS
Remote / Network Access
Denial of Service
Loss of Availability
Linksys Wireless-G Router WRT54G contains a flaw that may allow a remote denial of service. The issue is triggered when issuing a HTTP POST request with a negative Content-Length value, which causes the httpd to stop responding resulting in a loss of availability.
Upgrade to firmware 4.20.7 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.