Description
Integer signedness error in Opera before 8.54 allows remote attackers to execute arbitrary code via long values in a stylesheet attribute, which pass a length check. NOTE: a sign extension problem makes the attack easier with shorter strings.
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
- Opera Web Browser 8.52 - Stylesheet Attribute Buffer Overflow EDB-27641 · dos · Apr 13, 2006 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 17513 vdb-entry
- 1015912 vdb-entry
- 20060413 SEC Consult SA-20060314 :: Opera Browser CSS Attribute Integer Wrap / Buffer Overflow mailing-list
- http://www.opera.com/docs/changelogs/windows/854/
- opera-wcsncpy-css-bo(25829) vdb-entry
- 20060413 SEC Consult SA-20060314 :: Opera Browser CSS Attribute Integer Wrap / Buffer Overflow mailing-list
- GLSA-200606-01 vendor-advisory
- ADV-2006-1354 vdb-entry
- http://www.sec-consult.com/259.html
- SUSE-SR:2006:010 vendor-advisory
- 20117 third-party-advisory