Description
An integer overflow in "createImageBitmap()" was reported through the Pwn2Own contest. The fix for this vulnerability disables the experimental extensions to the "createImageBitmap" API. This function runs in the content sandbox, requiring a second vulnerability to compromise a user's computer. This vulnerability affects Firefox ESR < 52.0.1 and Firefox < 52.0.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox ESR | unspecified – < 52.0.1 | 52.0.1 |
| Mozilla | Firefox | unspecified – < 52.0.1 | 52.0.1 |
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | firefox | 52.0.1+build2-0ubuntu0.16.04.1 | USN-3238-1 |
| Ubuntu 14.04 LTS | firefox | 52.0.1+build2-0ubuntu0.14.04.1 | USN-3238-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | firefox | 52.0-5.el7_3 | RHSA-2017:0558 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 92.0-1.2 | openSUSE-SU-2024:10600-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | firefox | 52.0-5.0.1.el7_3 | ELSA-2017-0558 |
Advisories 6
- RHSA-2017:0558 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-3238-1 firefox vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- openSUSE-SU-2024:10600-1 MozillaFirefox-92.0-1.2 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
- WID-SEC-2022-1873 Mozilla Firefox: Schwachstelle ermöglicht Ausführen von beliebigem Programmcode mit den Rechten des Dienstes BSI CERT-Bund (WID) · Jan 31, 2024
- ELSA-2017-0558 Critical: firefox security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Mar 17, 2017
References
- 1038060 vdb-entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1348168
- 96959 vdb-entry
- RHSA-2017:0558 vendor-advisory
- https://www.mozilla.org/security/advisories/mfsa2017-08/