Description
The destructor function for the "WindowsDllDetourPatcher" class can be re-purposed by malicious code in concert with another vulnerability to write arbitrary data to an attacker controlled location in memory. This can be used to bypass existing memory protections in this situation. Note: This attack only affects Windows operating systems. Other operating systems are not affected. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Thunderbird | unspecified – < 52.3 | 52.3 |
| Mozilla | Firefox ESR | unspecified – < 52.3 | 52.3 |
| Mozilla | Firefox | unspecified – < 55 | 55 |
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.
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | MozillaFirefox | 52.3.0esr-109.3.1 | SUSE-SU-2017:2589-1 |
| SLES 12 SP2 | MozillaFirefox | 52.3.0esr-109.3.1 | SUSE-SU-2017:2589-1 |
| SLES 12 SP1 | MozillaFirefox | 52.3.0esr-109.3.1 | SUSE-SU-2017:2589-1 |
| SLES 12 | MozillaFirefox | 52.3.0esr-109.3.1 | SUSE-SU-2017:2589-1 |
| SLES 11 SP4 | MozillaFirefox | 52.3.0esr-72.9.1 | SUSE-SU-2017:2302-1 |
| SLES 11 SP4 | MozillaFirefox-branding-SLED | 52-24.5.1 | SUSE-SU-2017:2302-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP3 | MozillaFirefox | 52.3.0esr-72.9.1 | SUSE-SU-2017:2302-1 |
| SLES 11 SP3 | MozillaFirefox-branding-SLED | 52-24.5.1 | SUSE-SU-2017:2302-1 |
| SLES for SAP 12 SP3 | MozillaFirefox | 52.3.0esr-109.3.1 | SUSE-SU-2017:2589-1 |
| SLES for SAP 12 SP2 | MozillaFirefox | 52.3.0esr-109.3.1 | SUSE-SU-2017:2589-1 |
| SLES for SAP 12 SP1 | MozillaFirefox | 52.3.0esr-109.3.1 | SUSE-SU-2017:2589-1 |
| SLES for SAP 11 SP4 | MozillaFirefox | 52.3.0esr-72.9.1 | SUSE-SU-2017:2302-1 |
| SLES for SAP 11 SP4 | MozillaFirefox-branding-SLED | 52-24.5.1 | SUSE-SU-2017:2302-1 |
| SUSE Package Hub 12 | MozillaThunderbird | 52.3.0-42.1 | openSUSE-SU-2017:2209-1 |
| SUSE OpenStack Cloud 6 | MozillaFirefox | 52.3.0esr-109.3.1 | SUSE-SU-2017:2589-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | MozillaFirefox | 52.3.0esr-72.9.1 | SUSE-SU-2017:2302-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | MozillaFirefox-branding-SLED | 52-24.5.1 | SUSE-SU-2017:2302-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 92.0-1.2 | openSUSE-SU-2024:10600-1 |
| openSUSE Tumbleweed | MozillaThunderbird | 91.1.1-1.1 | openSUSE-SU-2024:10601-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
Advisories 7
- SUSE-SU-2017:2302-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10600-1 MozillaFirefox-92.0-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2589-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2017:2209-1 Security update for MozillaThunderbird 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-2025-1211 Mozilla Firefox: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 2, 2025
- openSUSE-SU-2024:10601-1 MozillaThunderbird-91.1.1-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025