Description
The crypto.generateCRMFRequest function in Mozilla Firefox before 23.0, Firefox ESR 17.x before 17.0.8, Thunderbird before 17.0.8, Thunderbird ESR 17.x before 17.0.8, and SeaMonkey before 2.20 allows remote attackers to execute arbitrary JavaScript code or conduct cross-site scripting (XSS) attacks via vectors related to Certificate Request Message Format (CRMF) request generation.
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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 7 | icedove | 17.0.8-1~deb7u1 | DSA-2746-1 |
| Debian 7 | iceweasel | 17.0.8esr-1~deb7u1 | DSA-2735-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | firefox | 17.0.8-1.el6_4 | RHSA-2013:1140 |
| RHEL 6 | thunderbird | 17.0.8-5.el6_4 | RHSA-2013:1142 |
| RHEL 6 | xulrunner +1 | 17.0.8-3.el6_4 | RHSA-2013:1140 |
| RHEL 5 | firefox | 17.0.8-1.el5_9 | RHSA-2013:1140 |
| RHEL 5 | xulrunner +1 | 17.0.8-3.el5_9 | RHSA-2013:1140 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Productivity 5 | thunderbird | 17.0.8-5.el5_9 | RHSA-2013:1142 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 50.1.0-1.1 | openSUSE-SU-2024:10071-1 |
| openSUSE Tumbleweed | MozillaThunderbird | 45.5.1-1.1 | openSUSE-SU-2024:10230-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Metasploit 2 modules
-
Firefox 5.0 - 15.0.1 __exposedProps__ XCS Code Execution
exploit/multi/browser/firefox_proto_crmfrequest
-
Firefox toString console.time Privileged Javascript Injection
exploit/multi/browser/firefox_tostring_console_injection
Exploit-DB 1
- Mozilla Firefox 5.0 < 15.0.1 - __exposedProps__ XCS Code Execution (Metasploit) EDB-30474 · local · Aug 6, 2013 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 7
- RHSA-2013:1140 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2013:1142 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DSA-2735-1 iceweasel - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2746-1 icedove - several Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10230-1 MozillaThunderbird-45.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- 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
- http://www.mozilla.org/security/announce/2013/mfsa2013-69.html
- DSA-2746 vendor-advisory
- oval:org.mitre.oval:def:18773 vdb-entry signature
- 61900 vdb-entry
- DSA-2735 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=871368