Description
A type confusion issue was addressed with improved memory handling. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | iOS, tvOS, watchOS, Safari, iTunes for Windows, iCloud for Windows | Versions prior to: iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6 | — |
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 14 | webkit2gtk | 2.20.4-1 | — |
| Debian 13 | webkit2gtk | 2.20.4-1 | — |
| Debian 12 | webkit2gtk | 2.20.4-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | qtwebkit-opensource-src | No fix yet | — |
| Ubuntu 22.04 LTS | qtwebkit-opensource-src | No fix yet | — |
| Ubuntu 20.04 LTS | qtwebkit-opensource-src | No fix yet | — |
| Ubuntu 18.04 LTS | webkit2gtk | 2.20.5-0ubuntu0.18.04.1 | USN-3743-1 |
| Ubuntu 18.04 LTS | webkitgtk +2 | No fix yet | — |
| Ubuntu 16.04 LTS | webkit2gtk | 2.20.5-0ubuntu0.16.04.1 | USN-3743-1 |
| Ubuntu 16.04 LTS | webkitgtk +2 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | webkit2gtk3 | 2.20.5-3.8.1 | SUSE-SU-2018:2752-1 |
| SLES 12 SP4 | webkit2gtk3 | 2.22.4-2.29.3 | SUSE-SU-2019:0059-1 |
| SLES 12 SP3 | webkit2gtk3 | 2.22.4-2.29.3 | SUSE-SU-2019:0059-1 |
| SLES 12 SP2 | webkit2gtk3 | 2.22.4-2.29.3 | SUSE-SU-2019:0059-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP4 | webkit2gtk3 | 2.22.4-2.29.3 | SUSE-SU-2019:0059-1 |
| SLES for SAP 12 SP3 | webkit2gtk3 | 2.22.4-2.29.3 | SUSE-SU-2019:0059-1 |
| SLES for SAP 12 SP2 | webkit2gtk3 | 2.22.4-2.29.3 | SUSE-SU-2019:0059-1 |
| SUSE OpenStack Cloud 7 | webkit2gtk3 | 2.22.4-2.29.3 | SUSE-SU-2019:0059-1 |
| SUSE Enterprise Storage 4 | webkit2gtk3 | 2.22.4-2.29.3 | SUSE-SU-2019:0059-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | gtk3 | 2.32.4-1.1 | openSUSE-SU-2024:11506-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.8 | webkit2gtk | 2.20.4-r0 | — |
Advisories 4
- USN-3743-1 webkit2gtk vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- SUSE-SU-2018:2752-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0059-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11506-1 libjavascriptcoregtk-4_0-18-2.32.4-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026