Description
Mozilla Firefox before 3.5.9 and 3.6.x before 3.6.2, and SeaMonkey before 2.0.4, executes a mail application in situations where an IMG element has a SRC attribute that is a redirect to a mailto: URL, which allows remote attackers to cause a denial of service (excessive application launches) via an HTML document with many images.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 50.1.0-1.1 | openSUSE-SU-2024:10071-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
Advisories 2
- openSUSE-SU-2024:14572-1 firefox-esr-128.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10071-1 MozillaFirefox-50.1.0-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- 39397 third-party-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=452093
- 39136 third-party-advisory
- USN-921-1 vendor-advisory
- SUSE-SR:2010:013 vendor-advisory
- http://websecurity.com.ua/4206/
- 20100518 DoS vulnerabilities in Firefox, Internet Explorer, Chrome, Opera and other browsers mailing-list
- MDVSA-2010:070 vendor-advisory
- firefox-mailto-weak-security(57395) vdb-entry
- oval:org.mitre.oval:def:6776 vdb-entry signature
- http://www.mozilla.org/security/announce/2010/mfsa2010-23.html
- ADV-2010-0748 vdb-entry
- ADV-2010-0849 vdb-entry