Sun Java JRE up to 1.5.0 Update 6 Applet Font.createFont denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Sun Java JRE up to 1.5.0 Update 6. It has been rated as critical. This vulnerability affects the function Font.createFont of the component Applet Handler. Performing a manipulation results in denial of service. This vulnerability is reported as CVE-2006-2426. Moreover, an exploit is present. It is recommended to replace the affected component with an alternative.

Detailsinfo

A vulnerability was found in Sun Java JRE up to 1.5.0 Update 6 (Programming Language Software). It has been classified as critical. This affects the function Font.createFont of the component Applet Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

Sun Java Runtime Environment (JRE) 1.5.0_6 and earlier, JDK 1.5.0_6 and earlier, and SDK 1.5.0_6 and earlier allows remote attackers to cause a denial of service (disk consumption) by using the Font.createFont function to create temporary files of arbitrary size in the %temp% directory.

The bug was discovered 05/13/2006. The weakness was disclosed 05/16/2006 by Marc Schoenefeld (Website). It is possible to read the advisory at novell.com. This vulnerability is uniquely identified as CVE-2006-2426 since 05/17/2006. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

A public exploit has been developed in Java. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 67831 (Oracle Linux 5 : java-1.6.0-openjdk (ELSA-2009-0377)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 155924 (Oracle Enterprise Linux Update for java-1.6.0-openjdk (ELSA-2009-0377)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at java.sun.com. The problem might be mitigated by replacing the product with as an alternative. The best possible mitigation is suggested to be establishing an alternative product. A possible mitigation has been published 4 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (26493), Exploit-DB (27882), Tenable (67831), SecurityFocus (BID 17981†) and OSVDB (25561†). The entry VDB-47641 is pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.9
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67831
Nessus Name: Oracle Linux 5 : java-1.6.0-openjdk (ELSA-2009-0377)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 63797
OpenVAS Name: Debian Security Advisory DSA 1769-1 (openjdk-6)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Alternative
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: java.sun.com

Timelineinfo

05/13/2006 🔍
05/15/2006 +2 days 🔍
05/15/2006 +0 days 🔍
05/16/2006 +1 days 🔍
05/16/2006 +0 days 🔍
05/17/2006 +0 days 🔍
05/17/2006 +0 days 🔍
05/21/2006 +4 days 🔍
05/22/2006 +1 days 🔍
04/11/2009 +1055 days 🔍
07/12/2013 +1553 days 🔍
01/10/2025 +4200 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: novell.com
Researcher: Marc Schoenefeld
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-2426 (🔍)
GCVE (CVE): GCVE-0-2006-2426
GCVE (VulDB): GCVE-100-2247

OVAL: 🔍

X-Force: 26493 - Sun Java Runtime Environment Font.createFont() denial of service, Medium Risk
SecurityFocus: 17981 - Sun Java Applet Font.createFont Remote Denial Of Service Vulnerability
Secunia: 34675 - Debian update for openjdk-6, Highly Critical
OSVDB: 25561 - Sun Java JRE Font.createFont() Method Disk Space Saturation DoS
Vulnerability Center: 11479 - Sun Java Runtime Environment Denial Of Service via Font.createFont(), Medium
Vupen: ADV-2006-1824

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

Entryinfo

Created: 05/22/2006 11:26
Updated: 01/10/2025 16:11
Changes: 05/22/2006 11:26 (104), 06/18/2019 09:54 (2), 01/10/2025 16:11 (23)
Complete: 🔍
Cache ID: 216::103

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