Konqueror KDE JavaScript implementation KJS denial of service

konqueror-kjs-dos (32798) The risk level is classified as LowLow Risk

Description:

Konqueror is vulnerable to a denial of service, caused by an error in the KDE JavaScript implementation (KJS). A remote attacker could exploit this vulnerability by creating a specially-crafted Web page containing an IFRAME tag with an ftp:// URL to cause a victim's browser to crash, if the attacker could persuade the victim to visit the malicious Web page.

*CVSS:

Base Score: 3.5
  Access Vector: Remote
  Access Complexity: Low
  Authentication: Not Required
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 2.7
  Exploitability: Proof-Of-Concept
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

For Mandriva Linux (kdelibs):
Refer to MDKSA-2007:054 for patch, upgrade, or suggested workaround information. See References.

For Ubuntu Linux (kdelibs):
Refer to USN-447-1 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

References:

  • Full-Disclosure Mailing List, 2007-03-04 21:38:01: Konqueror DoS Via JavaScript Read Of FTP Iframe.
  • KDE Web site: K Desktop Environment - KDE 3.5.6 Release Announcement.
  • BID-22814: KDE Konqueror JavaScript IFrame Denial of Service Vulnerability
  • CVE-2007-1308: 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.
  • MDKSA-2007:054: Updated kdelibs packages to address DoS issue in KDE Javascript
  • RHSA-2007-0909: Moderate: kdelibs security update
  • USN-447-1: KDE library vulnerabilities
  • VUPEN/ADV-2007-0886: KDE Konqueror JavaScript Iframe Handling Client-Side Denial of Service Vulnerability

Platforms Affected:

  • Canonical Ubuntu 5.10
  • Canonical Ubuntu 6.06 LTS
  • Canonical Ubuntu 6.10
  • KDE KDE 3.5.5
  • MandrakeSoft Mandrake Linux 2007
  • MandrakeSoft Mandrake Linux 2007 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 4.0
  • RedHat Enterprise Linux 4 ES
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 4 WS
  • RedHat Enterprise Linux 4 Desktop
  • RedHat Enterprise Linux 5
  • RedHat Enterprise Linux 5 Client
  • RedHat Enterprise Linux 5 Client Workstation

Reported:

Mar 04, 2007

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For corrections or additions please email xforce@iss.net

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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