Description
Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS 12.4, watchOS 5.3, Safari 12.1.2, iTunes for Windows 12.9.6, iCloud for Windows 7.13, iCloud for Windows 10.6. Processing maliciously crafted web content may lead to arbitrary code execution.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apple | iOS | unspecified – < iOS 12.4 | iOS 12.4 |
| Apple | macOS | unspecified – < macOS Mojave 10.14.6 | macOS Mojave 10.14.6 |
| Apple | tvOS | unspecified – < tvOS 12.4 | tvOS 12.4 |
| Apple | watchOS | unspecified – < watchOS 5.3 | watchOS 5.3 |
| Apple | Safari | unspecified – < Safari 12.1.2 | Safari 12.1.2 |
| Apple | iTunes for Windows | unspecified – < iTunes for Windows 12.9.6 | iTunes for Windows 12.9.6 |
| Apple | iCloud for Windows | unspecified – < iCloud for Windows 7.13 | iCloud for Windows 7.13 |
| Apple | iCloud for Windows (Microsoft Store) | unspecified – < iCloud for Windows 10.6 | iCloud for Windows 10.6 |
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 | 2.24.2-1 | — |
| Debian 13 | webkit2gtk | 2.24.2-1 | — |
| Debian 12 | webkit2gtk | 2.24.2-1 | — |
| Debian 10 | webkit2gtk | 2.24.4-1~deb10u1 | DSA-4515-1 |
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 | 2.24.2-0ubuntu0.18.04.1 | — |
| Ubuntu 18.04 LTS | webkitgtk +2 | No fix yet | — |
| Ubuntu 16.04 LTS | webkitgtk +3 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | SDL +1 | 1.2.15-35.el8 | RHSA-2019:3553 |
| RHEL 8 | accountsservice +2 | 0.6.50-7.el8 | RHSA-2019:3553 |
| RHEL 8 | appstream-data | 8-20190805.el8 | RHSA-2019:3553 |
| RHEL 8 | baobab | 3.28.0-2.el8 | RHSA-2019:3553 |
| RHEL 8 | chrome-gnome-shell | 10.1-6.el8 | RHSA-2019:3553 |
| RHEL 8 | evince +3 | 3.28.4-3.el8 | RHSA-2019:3553 |
| RHEL 8 | file-roller | 3.28.1-2.el8 | RHSA-2019:3553 |
| RHEL 8 | gdk-pixbuf2 +4 | 2.36.12-5.el8 | RHSA-2019:3553 |
| RHEL 8 | gdm | 1:3.28.3-22.el8 | RHSA-2019:3553 |
| RHEL 8 | gjs +1 | 1.56.2-3.el8 | RHSA-2019:3553 |
| RHEL 8 | gnome-classic-session +23 | 3.32.1-10.el8 | RHSA-2019:3553 |
| RHEL 8 | gnome-control-center +1 | 3.28.2-5.el8 | RHSA-2019:3553 |
| RHEL 8 | gnome-desktop3 +1 | 3.32.2-1.el8 | RHSA-2019:3553 |
| RHEL 8 | gnome-remote-desktop | 0.1.6-5.el8 | RHSA-2019:3553 |
| RHEL 8 | gnome-settings-daemon | 3.32.0-4.el8 | RHSA-2019:3553 |
| RHEL 8 | gnome-shell | 3.32.2-9.el8 | RHSA-2019:3553 |
| RHEL 8 | gnome-software +1 | 3.30.6-2.el8 | RHSA-2019:3553 |
| RHEL 8 | gnome-tweaks | 3.28.1-6.el8 | RHSA-2019:3553 |
| RHEL 8 | gsettings-desktop-schemas +1 | 3.32.0-3.el8 | RHSA-2019:3553 |
| RHEL 8 | gtk3 +3 | 3.22.30-4.el8 | RHSA-2019:3553 |
| RHEL 8 | gvfs +10 | 1.36.2-6.el8 | RHSA-2019:3553 |
| RHEL 8 | mozjs60 +1 | 60.9.0-3.el8 | RHSA-2019:3553 |
| RHEL 8 | mutter +1 | 3.32.2-10.el8 | RHSA-2019:3553 |
| RHEL 8 | nautilus +2 | 3.28.1-10.el8 | RHSA-2019:3553 |
| RHEL 8 | pango +1 | 1.42.4-6.el8 | RHSA-2019:3553 |
| RHEL 8 | pidgin +3 | 2.13.0-5.el8 | RHSA-2019:3553 |
| RHEL 8 | plymouth +16 | 0.9.3-15.el8 | RHSA-2019:3553 |
| RHEL 8 | wayland-protocols +1 | 1.17-1.el8 | RHSA-2019:3553 |
| RHEL 8 | webkit2gtk3 +4 | 2.24.3-1.el8 | RHSA-2019:3553 |
| RHEL 7 | webkitgtk4 +4 | 2.28.2-2.el7 | RHSA-2020:4035 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | gdk-pixbuf2 +4 | 2.36.12-5.el8 | ALSA-2019:3553 |
| AlmaLinux 8 | gnome-desktop3 +1 | 3.32.2-1.el8 | ALSA-2019:3553 |
| AlmaLinux 8 | pidgin +3 | 2.13.0-5.el8 | ALSA-2019:3553 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | gdk-pixbuf2 | 2.36.12-5.el8 | RLSA-2019:3553 |
| Rocky Linux 8 | gnome-desktop3 | 3.32.2-1.el8 | RLSA-2019:3553 |
| Rocky Linux 8 | pango | 1.42.4-6.el8 | RLSA-2019:3553 |
| Rocky Linux 8 | pidgin | 2.13.0-5.el8 | RLSA-2019:3553 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | webkit2gtk3 | 2.24.4-3.31.1 | SUSE-SU-2019:2428-1 |
| SLES 15 | webkit2gtk3 | 2.24.4-3.31.1 | SUSE-SU-2019:2428-1 |
| SLES 12 SP4 | webkit2gtk3 | 2.24.4-2.47.1 | SUSE-SU-2019:2345-1 |
| SLES 12 SP3 | webkit2gtk3 | 2.24.4-2.47.1 | SUSE-SU-2019:2345-2 |
| SLES 12 SP2 | webkit2gtk3 | 2.24.4-2.47.1 | SUSE-SU-2019:2345-2 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP4 | webkit2gtk3 | 2.24.4-2.47.1 | SUSE-SU-2019:2345-1 |
| SLES for SAP 12 SP3 | webkit2gtk3 | 2.24.4-2.47.1 | SUSE-SU-2019:2345-2 |
| SLES for SAP 12 SP2 | webkit2gtk3 | 2.24.4-2.47.1 | SUSE-SU-2019:2345-2 |
| SUSE OpenStack Cloud Crowbar 8 | webkit2gtk3 | 2.24.4-2.47.1 | SUSE-SU-2019:2345-2 |
| SUSE OpenStack Cloud 8 | webkit2gtk3 | 2.24.4-2.47.1 | SUSE-SU-2019:2345-2 |
| SUSE OpenStack Cloud 7 | webkit2gtk3 | 2.24.4-2.47.1 | SUSE-SU-2019:2345-2 |
| SUSE HPE Helion OpenStack 8 | webkit2gtk3 | 2.24.4-2.47.1 | SUSE-SU-2019:2345-2 |
| SUSE Enterprise Storage 5 | webkit2gtk3 | 2.24.4-2.47.1 | SUSE-SU-2019:2345-2 |
| SUSE Enterprise Storage 4 | webkit2gtk3 | 2.24.4-2.47.1 | SUSE-SU-2019:2345-2 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | webkit2gtk3 | 2.24.4-lp151.2.6.1 | openSUSE-SU-2019:2208-1 |
| openSUSE Leap 15.0 | webkit2gtk3 | 2.24.4-lp150.2.25.1 | openSUSE-SU-2019:2207-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.20 | webkit2gtk | 2.24.3-r0 | — |
| Alpine v3.19 | webkit2gtk | 2.24.3-r0 | — |
| Alpine v3.18 | webkit2gtk | 2.24.3-r0 | — |
| Alpine v3.17 | webkit2gtk | 2.24.3-r0 | — |
| Alpine v3.16 | webkit2gtk | 2.24.3-r0 | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.15 | webkit2gtk | 2.24.3-r0 | — |
| Alpine v3.14 | webkit2gtk | 2.24.3-r0 | — |
| Alpine v3.13 | webkit2gtk | 2.24.3-r0 | — |
| Alpine v3.12 | webkit2gtk | 2.24.3-r0 | — |
| Alpine v3.11 | webkit2gtk | 2.24.3-r0 | — |
| Alpine v3.10 | webkit2gtk | 2.24.3-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | webkitgtk4 +4 | 2.28.2-2.amzn2.0.1 | ALAS2-2020-1563 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | webkitgtk4 +4 | 2.28.2-2.el7 | ELSA-2020-4035 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- macOS / iOS JavaScriptCore - JSValue Use-After-Free in ValueProfiles EDB-47191 · dos · Jul 30, 2019 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 14
- ALSA-2019:3553 Low: GNOME security, bug fix, and enhancement update AlmaLinux Security Advisories · Nov 5, 2026
- WID-SEC-2026-4026 Red Hat OpenShift: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 18, 2026
- RHSA-2020:4035 Red Hat Security Advisory: webkitgtk4 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- RHSA-2019:3553 Red Hat Security Advisory: GNOME security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- DSA-4515-1 webkit2gtk - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2019:3553 Low: GNOME security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2019:2428-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2345-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2345-2 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:2207-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:2208-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · May 7, 2025
- WID-SEC-2024-1479 Red Hat Enterprise Linux/WebKitGTK: Mehrere Schwachstellen ermöglichen Ausführen von beliebigem Programmcode mit Benutzerrechten BSI CERT-Bund (WID) · Jun 30, 2024
- ALAS2-2020-1563 Moderate: webkitgtk4 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Nov 11, 2020
- ELSA-2020-4035 Moderate: webkitgtk4 security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 6, 2020