Mozilla Firefox unicode data denial of service
| firefox-unicode-data-dos (51729) |  Medium Risk |
Description:
Mozilla Firefox is vulnerable to a denial of service, caused by a stack-based buffer overflow. By sending an overly long string of unicode data to the document.write method, a remote attacker could overflow a buffer and cause the application to crash.
Note: The details of this vulnerability have been disputed.
*CVSS:
| Base Score: | 4.3 |
| Access Vector: | Network |
| Access Complexity: | Medium |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Partial |
| Temporal Score: | 3.9 |
| Exploitability: | Functional |
| Remediation Level: | Unavailable |
| Report Confidence: | Uncorroborated |
Consequences:
Denial of Service
Remedy:
No remedy available as of October 2009.
References:
- Mozilla Web site: Firefox.
- BID-35707: Mozilla Firefox Unicode Data Remote Denial of Service Vulnerability
- CVE-2009-2479: Mozilla Firefox 3.0.x, 3.5, and 3.5.1 on Windows allows remote attackers to cause a denial of service (uncaught exception and application crash) via a long Unicode string argument to the write method. NOTE: this was originally reported as a stack-based buffer overflow. NOTE: on Linux and Mac OS X, a crash resulting from this long string reportedly occurs in an operating-system library, not in Firefox.
- OSVDB ID: 55931: Mozilla Firefox Write Method Unicode String Argument Handling Remote Overflow
- OSVDB ID: 56321: Google Chrome Write Method Unicode String Argument Handling Remote DoS
- OSVDB ID: 56322: Opera Write Method Unicode String Argument Handling Remote DoS
- OSVDB ID: 56323: Microsoft IE Write Method Unicode String Argument Handling Remote DoS
- SECTRACK ID: 1022580: Mozilla Firefox Bug in Processing Unicode Characters Lets Remote Users Deny Service
Platforms Affected:
- Mozilla Firefox 3.5
Reported:
Jul 15, 2009
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 the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email ignore thisxforceignore this@ignore thisus.ignore thisibm.comignore this
* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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.