Mozilla Firefox onUnload handler code execution
| mozilla-onunload-code-execution (32648) |  High Risk |
Description:
Mozilla Firefox could allow a remote attacker to execute arbitrary code on the system, caused by improper handling of JavaScript onUnload handlers. A remote attacker could exploit this vulnerability by creating a specially-crafted Web page to corrupt memory and execute arbitrary code on the system with the privileges of the victim, if the attacker could persuade the victim to visit the malicious site.
*CVSS:
| Base Score: | 8 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | Complete |
| Integrity Impact: | Complete |
| Availability Impact: | Complete |
| Temporal Score: | 5.6 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Uncorroborated |
Consequences:
Gain Access
Remedy:
Refer to MFSA 2007-08 for patch, upgrade, or suggested workaround information. See References.
For Ubuntu Linux:
Refer to USN-428-2 for patch, upgrade, or suggested workaround information. See References.
For SUSE Linux (Firefox):
Refer to SUSE-SA:2007:019 for patch, upgrade, or suggested workaround information. See References.
For Red Hat Linux (Thunderbird):
Refer to RHSA-2007:0078-2 for patch, upgrade, or suggested workaround information. See References.
For SUSE Linux (Mozilla):
Refer to SUSE-SA:2007:022 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- Full-Disclosure Mailing List, Fri Feb 23 2007 - 06:49:41 CST: [Full-disclosure] Firefox: onUnload tailgating (MSIE7 entrapment bug variant).
- MFSA 2007-08: onUnload + document.write() memory corruption.
- Mozilla Bugzilla Bug 371321: memory corruption when onUnload is mixed with document.write()s.
- ASA-2007-095: thunderbird security update (RHSA-2007-0078)
- BID-22679: Mozilla Firefox OnUnload Memory Corruption Vulnerability
- CVE-2007-1092: Mozilla Firefox 1.5.0.9 and 2.0.0.1, and SeaMonkey before 1.0.8 allow remote attackers to execute arbitrary code via JavaScript onUnload handlers that modify the structure of a document, wich triggers memory corruption due to the lack of a finalize hook on DOM window objects.
- MDKSA-2007:050: Updated Firefox packages fix multiple vulnerabilities
- MDKSA-2007:050-1: Updated Firefox packages fix multiple vulnerabilities
- RHSA-2007-0077: Critical: seamonkey security update
- RHSA-2007-0078: Critical: thunderbird security update
- RHSA-2007-0079: Critical: Firefox security update
- SECTRACK ID: 1017701: Mozilla Firefox onUnload Event and document.write() Race Condition May Let Remote Users Execute Arbitrary Code
- SUSE-SA:2007:019: MozillaFirefox security update 1.5.0.10/2.0.0.2
- SUSE-SA:2007:022: Mozilla security problems
- US-CERT VU#393921: Mozilla Firefox fails to properly handle JavaScript onUnload events
- USN-428-1: Firefox vulnerabilities
- USN-428-2: Firefox regression
Platforms Affected:
- Canonical Ubuntu 5.10
- Canonical Ubuntu 6.06 LTS
- Canonical Ubuntu 6.10
- MandrakeSoft Mandrake Linux 2007 X86_64
- MandrakeSoft Mandrake Linux 2007
- MandrakeSoft Mandrake Linux Corporate Server 3.0
- MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 4.0
- MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
- Mozilla Firefox 2.0.0.1
- Mozilla Gecko 20060601
- Novell Linux Desktop 9
- Novell Linux POS 9
- Novell Open Enterprise Server
- Novell Open Enterprise Server
- Novell OpenSUSE 10.2
- Novell UnitedLinux 1.0
- RedHat Enterprise Linux 2.1 WS
- RedHat Enterprise Linux 2.1 AS
- RedHat Enterprise Linux 2.1 ES
- RedHat Enterprise Linux 3 Desktop
- RedHat Enterprise Linux 3 AS
- RedHat Enterprise Linux 3 WS
- RedHat Enterprise Linux 3 ES
- RedHat Enterprise Linux 4 Desktop
- RedHat Enterprise Linux 4 AS
- RedHat Enterprise Linux 4 ES
- RedHat Enterprise Linux 4 WS
- RedHat Linux Advanced Workstation 2.1 Itanium
- SuSE Linux Enterprise Server 8
- SUSE SuSE Linux 10.0
- SUSE SuSE Linux 10.1
- SUSE SuSE Linux 9.3
- SuSE SuSE Linux OpenExchange Server 4
- SuSE SuSE Linux Retail Solution 8
- SuSE SuSE Linux School Server
- SuSE SuSE Linux Standard Server 8
- SuSE SuSE SLED 10
- SuSE SuSE SLES 10
- SuSE SuSE SLES 9
Reported:
Feb 23, 2007
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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.