Description
Integer overflow in the JavaScript engine in Avant Browser 11.7 Build 9 and earlier allows remote attackers to cause a denial of service (application crash) by attempting to URL encode a string containing many instances of an invalid character.
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
- Avant Browser 11.7 Build 9 - JavaScript Engine Integer Overflow EDB-32381 · dos · Sep 12, 2008 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 4284 third-party-advisory
- avantbrowser-javascript-dos(45121) vdb-entry
- 31155 vdb-entry
- 20080912 Avant Browser <= 11.7 Build 9 Integer Denial Of Service Exploit mailing-list