Description
ecma/kjs_html.cpp in KDE JavaScript (KJS), as used in Konqueror in KDE 3.5.5, allows remote attackers to cause a denial of service (crash) by accessing the content of an iframe with an ftp:// URI in the src attribute, probably due to a NULL pointer dereference.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | kdelibs +2 | 6:3.5.4-13.el5 | RHSA-2007:0909 |
| RHEL 4 | kdelibs +1 | 6:3.3.1-9.el4 | RHSA-2007:0909 |
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
- KDE Konqueror 3.5 - JavaScript IFrame Denial of Service EDB-29713 · dos · Mar 5, 2007 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- RHSA-2007:0909 Red Hat Security Advisory: kdelibs security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- 22814 vdb-entry
- RHSA-2007:0909 vendor-advisory
- 20070304 Konqueror DoS Via JavaScript Read Of FTP Iframe mailing-list
- 20070304 Konqueror DoS Via JavaScript Read Of FTP Iframe mailing-list
- ADV-2007-0886 vdb-entry
- http://bindshell.net/advisories/konq355/konq355-patch.diff
- USN-447-1 vendor-advisory
- MDKSA-2007:054 vendor-advisory
- 27108 third-party-advisory
- http://bindshell.net/advisories/konq355
- oval:org.mitre.oval:def:10551 vdb-entry signature
- 2345 third-party-advisory
- konqueror-ftp-dos(32798) vdb-entry