Description
A use-after-free vulnerability in WebCore::RenderLayer::repaintBlockSelectionGaps in WebKitGTK before 2.36.8 allows attackers to execute code remotely.
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 | wpewebkit +1 | 2.38.0-1 | — |
| Debian 13 | wpewebkit +1 | 2.38.0-1 | — |
| Debian 12 | wpewebkit +1 | 2.38.0-1 | — |
| Debian 11 | wpewebkit +1 | 2.38.0-1~deb11u1 | DSA-5241-1, DSA-5240-1 |
| Debian 10 | webkit2gtk | 2.38.0-1~deb10u1 | DLA-3124-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | webkitgtk | No fix yet | — |
| Ubuntu 16.04 LTS | webkitgtk | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | webkit2gtk3 +3 | 2.38.5-1.el9 | RHSA-2023:2256 |
| RHEL 8 | webkit2gtk3 +3 | 2.38.5-1.el8 | RHSA-2023:2834 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | webkit2gtk3 +3 | 2.38.5-1.el9 | ALSA-2023:2256 |
| AlmaLinux 8 | webkit2gtk3 +3 | 2.38.5-1.el8 | ALSA-2023:2834 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | webkit2gtk3 +2 | 2.38.6-150400.4.39.1 | SUSE-SU-2023:2065-1 |
| SLES 15 SP3 | webkit2gtk3 | 2.38.6-150200.72.1 | SUSE-SU-2023:2077-1 |
| SLES 15 SP2 | webkit2gtk3 | 2.38.6-150200.72.1 | SUSE-SU-2023:2077-1 |
| SLES 15 SP1 | webkit2gtk3 | 2.38.6-150000.3.139.1 | SUSE-SU-2023:2078-1 |
| SLES 12 SP5 | webkit2gtk3 | 2.38.6-2.136.1 | SUSE-SU-2023:2056-1 |
Show 17 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | webkit2gtk3 | 2.38.6-2.136.1 | SUSE-SU-2023:2056-1 |
| SLES 12 SP2 | webkit2gtk3 | 2.38.6-2.136.1 | SUSE-SU-2023:2056-1 |
| SLES for SAP 15 SP3 | webkit2gtk3 | 2.38.6-150200.72.1 | SUSE-SU-2023:2077-1 |
| SLES for SAP 15 SP2 | webkit2gtk3 | 2.38.6-150200.72.1 | SUSE-SU-2023:2077-1 |
| SLES for SAP 15 SP1 | webkit2gtk3 | 2.38.6-150000.3.139.1 | SUSE-SU-2023:2078-1 |
| SLES for SAP 12 SP5 | webkit2gtk3 | 2.38.6-2.136.1 | SUSE-SU-2023:2056-1 |
| SLES for SAP 12 SP4 | webkit2gtk3 | 2.38.6-2.136.1 | SUSE-SU-2023:2056-1 |
| SLE Real Time 15 SP3 | webkit2gtk3 | 2.38.6-150200.72.1 | SUSE-SU-2023:2077-1 |
| SLE HPC 15 SP3 | webkit2gtk3 | 2.38.6-150200.72.1 | SUSE-SU-2023:2077-1 |
| SLE HPC 15 SP2 | webkit2gtk3 | 2.38.6-150200.72.1 | SUSE-SU-2023:2077-1 |
| SLE HPC 15 SP1 | webkit2gtk3 | 2.38.6-150000.3.139.1 | SUSE-SU-2023:2078-1 |
| SUSE OpenStack Cloud Crowbar 9 | webkit2gtk3 | 2.38.6-2.136.1 | SUSE-SU-2023:2056-1 |
| SUSE OpenStack Cloud 9 | webkit2gtk3 | 2.38.6-2.136.1 | SUSE-SU-2023:2056-1 |
| SUSE Manager Server 4.2 | webkit2gtk3 | 2.38.6-150200.72.1 | SUSE-SU-2023:2077-1 |
| SUSE Manager Proxy 4.2 | webkit2gtk3 | 2.38.6-150200.72.1 | SUSE-SU-2023:2077-1 |
| SUSE Enterprise Storage 7.1 | webkit2gtk3 | 2.38.6-150200.72.1 | SUSE-SU-2023:2077-1 |
| SUSE Enterprise Storage 7 | webkit2gtk3 | 2.38.6-150200.72.1 | SUSE-SU-2023:2077-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | webkit2gtk3 | 2.38.6-150200.72.1 | SUSE-SU-2023:2077-1, SUSE-SU-2023:2065-1 |
| openSUSE Leap 15.4 | webkit2gtk4 +1 | 2.38.6-150400.4.39.1 | SUSE-SU-2023:2065-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | webkitgtk4 +3 | 2.38.5-3.amzn2.0.1 | ALAS2-2023-2088 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | webkit2gtk3 +3 | 2.38.5-1.el9 | ELSA-2023-2256 |
| Oracle Linux 8 | webkit2gtk3 +3 | 2.38.5-1.el8 | ELSA-2023-2834 |
Advisories 15
- ALSA-2023:2256 Important: webkit2gtk3 security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:2834 Important: webkit2gtk3 security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2023-1185 Red Hat Enterprise Linux: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 3, 2026
- RHSA-2023:2834 Red Hat Security Advisory: webkit2gtk3 security and bug fix update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- RHSA-2023:2256 Red Hat Security Advisory: webkit2gtk3 security and bug fix update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- DSA-5241-1 wpewebkit - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-5240-1 webkit2gtk - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3124-1 webkit2gtk - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2023:2078-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2077-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2065-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2056-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2-2023-2088 Important: webkitgtk4 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Aug 28, 2024
- ELSA-2023-2834 Important: webkit2gtk3 security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 24, 2023
- ELSA-2023-2256 Important: webkit2gtk3 security and bug fix update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 15, 2023