Description
Mozilla Firefox before 24.0, Firefox ESR 17.x before 17.0.9, Thunderbird before 24.0, Thunderbird ESR 17.x before 17.0.9, and SeaMonkey before 2.21 do not properly identify the "this" object during use of user-defined getter methods on DOM proxies, which might allow remote attackers to bypass intended access restrictions via vectors involving an expando object.
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 | 17.0.9-1~deb7u1 | DSA-2762-1 |
| Debian 7 | iceweasel | 17.0.9esr-1~deb7u1 | DSA-2759-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | firefox +3 | 17.0.9-1.el6_4 | RHSA-2013:1269, RHSA-2013:1268 |
| RHEL 5 | firefox +2 | 17.0.9-1.el5_9 | RHSA-2013:1268 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Productivity 5 | thunderbird | 17.0.9-1.el5_9 | RHSA-2013:1269 |
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 |
Advisories 7
- RHSA-2013:1269 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2013:1268 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DSA-2759-1 iceweasel - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2762-1 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
- openSUSE-SU-2013:1491 vendor-advisory
- FEDORA-2013-16992 vendor-advisory
- openSUSE-SU-2013:1496 vendor-advisory
- FEDORA-2013-17074 vendor-advisory
- USN-1952-1 vendor-advisory
- USN-1951-1 vendor-advisory
- openSUSE-SU-2013:1633 vendor-advisory
- oval:org.mitre.oval:def:18789 vdb-entry signature
- FEDORA-2013-17047 vendor-advisory
- openSUSE-SU-2013:1493 vendor-advisory
- 62475 vdb-entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=907727
- openSUSE-SU-2013:1499 vendor-advisory
- http://www.mozilla.org/security/announce/2013/mfsa2013-91.html
- RHSA-2013:1268 vendor-advisory
- RHSA-2013:1269 vendor-advisory
- DSA-2762 vendor-advisory
- openSUSE-SU-2013:1495 vendor-advisory