Konqueror 3.5.9 HTML Parser input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability has been found in Konqueror 3.5.9 and classified as problematic. The impacted element is an unknown function of the component HTML Parser. This manipulation causes input validation. This vulnerability is registered as CVE-2008-4514. Furthermore, an exploit is available.

Detailsinfo

A vulnerability classified as problematic was found in Konqueror 3.5.9. Affected by this vulnerability is an unknown part of the component HTML Parser. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. The summary by CVE is:

The HTML parser in KDE Konqueror 3.5.9 allows remote attackers to cause a denial of service (application crash) via a font tag with a long color value, which triggers an assertion error.

The bug was discovered 10/08/2008. The weakness was published 10/09/2008 by Jeremy Brown with Brown (Website). The advisory is shared at securityfocus.com. This vulnerability is known as CVE-2008-4514 since 10/09/2008. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115981 (KDE Konqueror Font Color Assertion Denial of Service Vulnerability - Zero Day).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (45710), Exploit-DB (6689), SecurityFocus (BID 31605†), OSVDB (49033†) and Vulnerability Center (SBV-19692†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 900417
OpenVAS Name: Konqueror in KDE Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/06/2008 🔍
10/08/2008 +2 days 🔍
10/08/2008 +0 days 🔍
10/09/2008 +1 days 🔍
10/09/2008 +0 days 🔍
10/09/2008 +0 days 🔍
10/13/2008 +4 days 🔍
03/17/2015 +2346 days 🔍
05/25/2025 +3722 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Jeremy Brown
Organization: Brown
Status: Not defined

CVE: CVE-2008-4514 (🔍)
GCVE (CVE): GCVE-0-2008-4514
GCVE (VulDB): GCVE-100-44425
X-Force: 45710
SecurityFocus: 31605 - KDE Konqueror HTML Color Attribute Denial of Service Vulnerability
OSVDB: 49033 - KDE Konqueror HTML parser denial of service
Vulnerability Center: 19692 - KDE Konqueror 3.5.9 Remote DoS via a Font Tag with Long Color Value, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/17/2015 16:11
Updated: 05/25/2025 09:19
Changes: 03/17/2015 16:11 (62), 08/18/2019 09:33 (8), 11/06/2024 03:27 (21), 05/25/2025 09:19 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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