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Vulnerability Details : CVE-2007-4137

Off-by-one error in the QUtf8Decoder::toUnicode function in Trolltech Qt 3 allows context-dependent attackers to cause a denial of service (crash) via a crafted Unicode string that triggers a heap-based buffer overflow. NOTE: Qt 4 has the same error in the QUtf8Codec::convertToUnicode function, but it is not exploitable.
Publish Date : 2007-09-18 Last Update Date : 2018-10-15
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access User
Vulnerability Type(s) Denial Of ServiceOverflow
CWE ID 119

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat important 2007-08-28 2007-09-03
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2007-4137 unix
DSA-1426-1 qt-x11-free - several vulnerabilities oval:org.mitre.oval:def:20432 unix
ELSA-2007:0883: qt security update (Important) oval:org.mitre.oval:def:22579 unix
Off-by-one error in the QUtf8Decoder::toUnicode function in Trolltech Qt 3 allows context-dependent attackers to cause a... oval:org.mitre.oval:def:11159 unix
RHSA-2007:0883: qt security update (Important) oval:com.redhat.rhsa:def:20070883 unix
USN-513-1 -- qt-x11-free vulnerability oval:org.mitre.oval:def:17295 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2007-4137

# Product Type Vendor Product Version Update Edition Language
1 Application Trolltech QT 3.0 Version Details Vulnerabilities
2 Application Trolltech QT 3.0.3 Version Details Vulnerabilities
3 Application Trolltech QT 3.0.5 Version Details Vulnerabilities
4 Application Trolltech QT 3.1 Version Details Vulnerabilities
5 Application Trolltech QT 3.1.1 Version Details Vulnerabilities
6 Application Trolltech QT 3.1.2 Version Details Vulnerabilities
7 Application Trolltech QT 3.2.1 Version Details Vulnerabilities
8 Application Trolltech QT 3.2.3 Version Details Vulnerabilities
9 Application Trolltech QT 3.3.0 Version Details Vulnerabilities
10 Application Trolltech QT 3.3.1 Version Details Vulnerabilities
11 Application Trolltech QT 3.3.2 Version Details Vulnerabilities
12 Application Trolltech QT 3.3.3 Version Details Vulnerabilities
13 Application Trolltech QT 3.3.4 Version Details Vulnerabilities
14 Application Trolltech QT 3.3.5 Version Details Vulnerabilities
15 Application Trolltech QT 3.3.6 Version Details Vulnerabilities
16 Application Trolltech QT 3.3.7 Version Details Vulnerabilities
17 Application Trolltech QT 3.3.8 Version Details Vulnerabilities
18 Application Trolltech QT 4.1 Version Details Vulnerabilities
19 Application Trolltech QT 4.1.4 Version Details Vulnerabilities
20 Application Trolltech QT 4.1.5 Version Details Vulnerabilities
21 Application Trolltech QT 4.2 Version Details Vulnerabilities
22 Application Trolltech QT 4.2.1 Version Details Vulnerabilities
23 Application Trolltech QT 4.2.3 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Trolltech QT 23

- References For CVE-2007-4137 CONFIRM
VUPEN ADV-2007-3144
BID 25657 Trolltech Qt ToUnicode Function Off By One Buffer Overflow Vulnerability Release Date:2007-12-18
BUGTRAQ 20071004 FLEA-2007-0059-1 qt qt-tools
REDHAT RHSA-2007:0883
SUSE SUSE-SR:2007:019
GENTOO GLSA-200710-28
GENTOO GLSA-200712-08
SGI 20070901-01-P CONFIRM

- Vulnerability Conditions

Vulnerability is valid if product versions listed below are used TOGETHER WITH(AND)

- Metasploit Modules Related To CVE-2007-4137

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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