Qt UTF-8 cross-site scripting

qt-utf8-xss (33397) The risk level is classified as MediumMedium Risk

Description:

Qt could allow a remote attacker to bypass security restrictions and perform cross-site scripting attacks, caused by the improper handling of the UTF-8 decoder. A remote attacker could exploit this vulnerability using overly long UTF-8 character sequences to execute arbitrary script in a victim's browser within the security context of the affected Web site, allowing the attacker to steal the victim's cookie-based authentication credentials.

*CVSS:

Base Score: 2.8
  Access Vector: Remote
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: Partial
  Integrity Impact: None
  Availability Impact: None
 
Temporal Score: 2.4
  Exploitability: High
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Refer to Trolltech News & Events Announcement 2007-03-30.9172215350 for patch, upgrade, or suggested workaround information. See References.

For Mandriva Linux (kdelibs):
Refer to MDKSA-2007:076 for patch, upgrade, or suggested workaround information. See References.

For Mandriva Linux (qt3):
Refer to MDKSA-2007:074 for patch, upgrade, or suggested workaround information. See References.

For Mandriva Linux (qt4):
Refer to MDKSA-2007:075 for patch, upgrade, or suggested workaround information. See References.

For Ubuntu (kdelibs, qt-x11-free):
Refer to USN-452-1 for patch, upgrade, or suggested workaround information. See References.

For Debian GNU/Linux (qt4-x11):
Refer to DSA-1292-1 for patch, upgrade, or suggested workaround information. See References.

For Turbolinux (kdelibs):
Refer to TLSA-2007-28 for patch, upgrade, or suggested workaround information. See References.

For Turbolinux (qt3):
Refer to TLSA-2007-30 for patch, upgrade, or suggested workaround information. See References.

For Red Hat Linux (qt):
Refer to RHSA-2007:0883-2 for patch, upgrade, or suggested workaround information. See References.

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

References:

  • Trolltech News & Events Announcement 2007-03-30.9172215350: Trolltech Releases Patch for Qt 3.3.8 and 4.2.3, Adressing UTF-8 Security Issue.
  • ASA-2007-424: Qt security update (RHSA-2007-0883)
  • BID-23269: Trolltech Qt UTF-8 Sequences Input Validation Vulnerability
  • CVE-2007-0242: The UTF-8 decoder in codecs/qutfcodec.cpp in Qt 3.3.8 and 4.2.3 does not reject long UTF-8 sequences as required by the standard, which allows remote attackers to conduct cross-site scripting (XSS) and directory traversal attacks via long sequences that decode to dangerous metacharacters.
  • DSA-1292: qt4-x11 -- missing input validation
  • MDKSA-2007:074: Updated qt3 packages to address utf8 decoder bug
  • MDKSA-2007:075: Updated qt4 packages to address utf8 decoder bug
  • MDKSA-2007:075-1: Updated qt4 packages to address utf8 decoder bug
  • MDKSA-2007:076: Updated kdelibs packages to address UTF8 issue in KJS
  • RHSA-2007-0883: Important: qt security update
  • RHSA-2007-0909: Moderate: kdelibs security update
  • SA24727: Qt Overlong UTF-8 Sequence Cross-Site Scripting Vulnerability
  • SA27275: Avaya Products Qt Overlong UTF-8 Sequence Cross-Site Scripting
  • SUSE-SR:2007:006: SUSE Security Summary Report

Platforms Affected:

  • Avaya Intuity Audix LX 2.0
  • Avaya Message Networking 3.1
  • Avaya Message Storage Server 3.0
  • Canonical Ubuntu 5.10
  • Canonical Ubuntu 6.06 LTS
  • Canonical Ubuntu 6.10
  • Debian Debian Linux 4.0
  • MandrakeSoft Mandrake Linux 2007
  • MandrakeSoft Mandrake Linux 2007 X86_64
  • MandrakeSoft Mandrake Linux 2007.1
  • MandrakeSoft Mandrake Linux 2007.1 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 3.0
  • MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 4.0
  • RedHat Enterprise Linux 2.1 WS
  • RedHat Enterprise Linux 2.1 ES
  • RedHat Enterprise Linux 2.1 AS
  • RedHat Enterprise Linux 3 WS
  • RedHat Enterprise Linux 3 ES
  • RedHat Enterprise Linux 3 AS
  • RedHat Enterprise Linux 3 Desktop
  • RedHat Enterprise Linux 4 ES
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 4 WS
  • RedHat Enterprise Linux 4 Desktop
  • RedHat Enterprise Linux 5 Client
  • RedHat Enterprise Linux 5 Client Workstation
  • RedHat Enterprise Linux 5 Server
  • RedHat Enterprise Linux 5
  • RedHat Enterprise Linux Desktop 5.0
  • RedHat Linux Advanced Workstation 2.1 Itanium
  • Trolltech Qt 3.3.8
  • Trolltech Qt 4.2.3
  • Turbolinux Turbolinux 10 Desktop
  • Turbolinux Turbolinux 10 F...
  • Turbolinux Turbolinux 10 Server
  • Turbolinux Turbolinux 10 Server x64 Ed
  • Turbolinux Turbolinux FUJI
  • Turbolinux Turbolinux Home
  • Turbolinux Turbolinux Multimedia
  • Turbolinux Turbolinux Personal
  • Turbolinux Turbolinux wizpy

Reported:

Apr 03, 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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