Zero-Day Advisory

Fortinet Discovers Multiple Out-of-Bounds Write Vulnerabilities in AVIRA

Summary

Fortinet's FortiGuard Labs has discovered multiple out-of-bounds write vulnerabilities in one of the DLL components served as IPC server run in AVIRA core service avguard.exe.

Avira is an antivirus software developed by Avira Operations GmbH & Co. KG.

A client program which successfully sends a crafted message to the vulnerable IPC server would potentially cause privilege elevation or denial-of-service.

Solutions

Users should apply AVIRA updates 15.0.26.48 and above

Additional Information

Fortinet reported the vulnerability to Avira on November 21, 2016.

Avira patched the vulnerability on February 21, 2017.

References

• https://www.avira.com/de/support-for-home-knowledgebase-detail/kbid/1699
  

Acknowledgement

This vulnerability was discovered by Wayne Low 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.