Description
An error in the "WindowsDllDetourPatcher" where a RWX ("Read/Write/Execute") 4k block is allocated but never protected, violating DEP protections. 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