Description
The SYMDNS.SYS driver in Symantec Norton Internet Security and Professional 2002 through 2004, Norton Personal Firewall 2002 through 2004, Norton AntiSpam 2004, Client Firewall 5.01 and 5.1.1, and Client Security 1.0 through 2.0 allows remote attackers to cause a denial of service (CPU consumption from infinite loop) via a DNS response with a compressed name pointer that points to itself.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Symantec Multiple Firewall - DNS Response Denial of Service EDB-299 · dos · May 16, 2004 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 1010146 vdb-entry
- 1010145 vdb-entry
- O-141 third-party-advisory government-resource
- VU#682110 third-party-advisory
- 6100 vdb-entry
- symantec-firewall-dns-dos(16132) vdb-entry
- http://securityresponse.symantec.com/avcenter/security/Content/2004.05.12.html
- 20040512 EEYE: Symantec Multiple Firewall DNS Response Denial-of-Service mailing-list
- 1010144 vdb-entry
- 11066 third-party-advisory
- 10336 vdb-entry