Zero-Day Advisory

Fortinet Discovers Vulnerability in Wireshark

Summary

Fortinet's FortiGuard Labs has discovered a denial of service vulnerability in Wireshark.

Solutions

FortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:

Wireshark.LDAP.SearchRequest.Resource.Consumption
Released Mar 15, 2011
Users should upgrade their Wireshark to the latest version.

Additional Information

Wireshark will crash or consume excessive resources when it parses a pcap/cap file containing malformed LDAP packets or sniffs malformed LDAP packets on a network.

Acknowledgement

Xiaopeng Zhang of Fortinet's FortiGuard Labs

IPS Subscription

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be protected against this vulnerability with the appropriate configuration parameters in place. Fortinet's IPS service is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and antispam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by FortiGuard Labs, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.