Description
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apple | macOS | unspecified – < 11.6 | 11.6 |
| Apple | iOS | unspecified – < 14.8 | 14.8 |
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 | 2.32.4-1 | — |
| Debian 13 | wpewebkit +1 | 2.32.4-1 | — |
| Debian 12 | wpewebkit +1 | 2.32.4-1 | — |
| Debian 11 | wpewebkit +1 | 2.32.4-1~deb11u1 | DSA-4976-1, DSA-4975-1 |
| Debian 10 | webkit2gtk | 2.32.4-1~deb10u1 | DSA-4975-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | qtwebkit-opensource-src | No fix yet | — |
| Ubuntu 22.04 LTS | wpewebkit +1 | No fix yet | — |
| Ubuntu 20.04 LTS | webkit2gtk | 2.32.4-0ubuntu0.20.04.1 | USN-5087-1 |
| Ubuntu 20.04 LTS | wpewebkit +1 | No fix yet | — |
| Ubuntu 18.04 LTS | webkit2gtk | 2.32.4-0ubuntu0.18.04.1 | USN-5087-1 |
| 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 | webkit2gtk3 +3 | 2.30.4-3.el8_4 | RHSA-2021:4097 |
| RHEL 7 | webkitgtk4 +4 | 2.28.2-3.el7 | RHSA-2022:0059 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.2 EUS | webkit2gtk3 +4 | 2.24.4-4.el8_2 | RHSA-2022:0075 |
| RHEL 8.1 EUS | webkit2gtk3 +4 | 2.24.4-4.el8_1 | RHSA-2021:4686 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | webkit2gtk3 | 2.30.4-3.el8_4 | RLSA-2021:4097 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | webkit2gtk3 | 2.32.4-12.3 | SUSE-SU-2022:0182-1, SUSE-SU-2021:3353-1 |
| SLES 15 SP2 | webkit2gtk3 | 2.32.4-12.3 | SUSE-SU-2022:0182-1, SUSE-SU-2021:3353-1 |
| SLES 15 SP1 | webkit2gtk3 | 2.32.4-3.82.1 | SUSE-SU-2022:0183-1, SUSE-SU-2021:3282-1 |
| SLES 15 | webkit2gtk3 | 2.32.4-3.82.1 | SUSE-SU-2022:0183-1, SUSE-SU-2021:3282-1 |
| SLES 12 SP5 | webkit2gtk3 | 2.32.4-2.71.2 | SUSE-SU-2022:0142-1, SUSE-SU-2021:3296-1 |
Show 23 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | webkit2gtk3 | 2.32.4-2.71.2 | SUSE-SU-2022:0142-1, SUSE-SU-2021:3296-1 |
| SLES 12 SP3 | webkit2gtk3 | 2.32.4-2.71.2 | SUSE-SU-2022:0142-1, SUSE-SU-2021:3296-1 |
| SLES 12 SP2 | webkit2gtk3 | 2.32.4-2.71.2 | SUSE-SU-2022:0142-1, SUSE-SU-2021:3296-1 |
| SLES for SAP 15 SP2 | webkit2gtk3 | 2.34.3-23.3 | SUSE-SU-2022:0182-1 |
| SLES for SAP 15 SP1 | webkit2gtk3 | 2.32.4-3.82.1 | SUSE-SU-2022:0183-1, SUSE-SU-2021:3282-1 |
| SLES for SAP 15 | webkit2gtk3 | 2.32.4-3.82.1 | SUSE-SU-2022:0183-1, SUSE-SU-2021:3282-1 |
| SLES for SAP 12 SP5 | webkit2gtk3 | 2.32.4-2.71.2 | SUSE-SU-2022:0142-1, SUSE-SU-2021:3296-1 |
| SLES for SAP 12 SP4 | webkit2gtk3 | 2.32.4-2.71.2 | SUSE-SU-2022:0142-1, SUSE-SU-2021:3296-1 |
| SLES for SAP 12 SP3 | webkit2gtk3 | 2.32.4-2.71.2 | SUSE-SU-2022:0142-1, SUSE-SU-2021:3296-1 |
| SLE Real Time 15 SP2 | webkit2gtk3 | 2.34.3-23.3 | SUSE-SU-2022:0182-2 |
| SLE HPC 15 SP2 | webkit2gtk3 | 2.34.3-23.3 | SUSE-SU-2022:0182-1 |
| SLE HPC 15 SP1 | webkit2gtk3 | 2.32.4-3.82.1 | SUSE-SU-2022:0183-1, SUSE-SU-2021:3282-1 |
| SLE HPC 15 | webkit2gtk3 | 2.32.4-3.82.1 | SUSE-SU-2022:0183-1, SUSE-SU-2021:3282-1 |
| SUSE OpenStack Cloud Crowbar 9 | webkit2gtk3 | 2.32.4-2.71.2 | SUSE-SU-2022:0142-1, SUSE-SU-2021:3296-1 |
| SUSE OpenStack Cloud Crowbar 8 | webkit2gtk3 | 2.32.4-2.71.2 | SUSE-SU-2022:0142-1, SUSE-SU-2021:3296-1 |
| SUSE OpenStack Cloud 9 | webkit2gtk3 | 2.32.4-2.71.2 | SUSE-SU-2022:0142-1, SUSE-SU-2021:3296-1 |
| SUSE OpenStack Cloud 8 | webkit2gtk3 | 2.32.4-2.71.2 | SUSE-SU-2022:0142-1, SUSE-SU-2021:3296-1 |
| SUSE Manager Server 4.1 | webkit2gtk3 | 2.34.3-23.3 | SUSE-SU-2022:0182-1 |
| SUSE Manager Retail Branch Server 4.1 | webkit2gtk3 | 2.34.3-23.3 | SUSE-SU-2022:0182-1 |
| SUSE Manager Proxy 4.1 | webkit2gtk3 | 2.34.3-23.3 | SUSE-SU-2022:0182-1 |
| SUSE HPE Helion OpenStack 8 | webkit2gtk3 | 2.32.4-2.71.2 | SUSE-SU-2022:0142-1, SUSE-SU-2021:3296-1 |
| SUSE Enterprise Storage 7 | webkit2gtk3 | 2.34.3-23.3 | SUSE-SU-2022:0182-1 |
| SUSE Enterprise Storage 6 | webkit2gtk3 | 2.32.4-3.82.1 | SUSE-SU-2022:0183-1, SUSE-SU-2021:3282-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | gtk3 | 2.32.4-1.1 | openSUSE-SU-2024:11506-1 |
| openSUSE Leap 15.3 | webkit2gtk3 | 2.32.4-12.3 | openSUSE-SU-2022:0182-1, openSUSE-SU-2021:3353-1 |
| openSUSE Leap 15.2 | webkit2gtk3 | 2.32.4-lp152.2.19.1 | openSUSE-SU-2021:1369-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.20 | webkit2gtk | 2.32.4-r0 | — |
| Alpine v3.19 | webkit2gtk | 2.32.4-r0 | — |
| Alpine v3.18 | webkit2gtk | 2.32.4-r0 | — |
| Alpine v3.17 | webkit2gtk | 2.32.4-r0 | — |
| Alpine v3.16 | webkit2gtk | 2.32.4-r0 | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.15 | webkit2gtk | 2.32.4-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | webkitgtk4 +4 | 2.28.2-3.amzn2.0.1 | ALAS2-2022-1747 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | webkit2gtk3 +3 | 2.30.4-3.el8_4 | ELSA-2021-4097 |
| Oracle Linux 7 | webkitgtk4 +4 | 2.28.2-3.el7 | ELSA-2022-0059 |
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.
GitHub 2 repositories
-
kmeps4/CVEREV3 ★ 1 · Oct 14, 2021
Testing CVE-2021-30858 Rev3
-
Jeromeyoung/ps4_8.00_vuln_poc ★ 0 · Oct 14, 2021
My take on CVE-2021-30858 for ps4 8.xx
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 24
- WID-SEC-2022-0432 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 11, 2026
- WID-SEC-2022-0302 Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen Ausführen von beliebigem Programmcode mit Administratorrechten BSI CERT-Bund (WID) · Oct 11, 2026
- RHSA-2022:0059 Red Hat Security Advisory: webkitgtk4 security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-5087-1 webkit2gtk vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4975-1 webkit2gtk - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-4976-1 wpewebkit - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:4097 Moderate: webkit2gtk3 security and bug fix update Rocky Linux Security Advisories · Feb 4, 2026
- openSUSE-SU-2021:3353-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2022:0182-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0183-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3353-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3282-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0182-2 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0182-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:3296-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0142-1 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
- openSUSE-SU-2021:1369-1 Security update for webkit2gtk3 SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2022:0075 Red Hat Security Advisory: webkit2gtk3 security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2021:4686 Red Hat Security Advisory: webkit2gtk3 security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2021:4097 Red Hat Security Advisory: webkit2gtk3 security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- ALAS2-2022-1747 Moderate: webkitgtk4 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Feb 9, 2022
- ELSA-2022-0059 Moderate: webkitgtk4 security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jan 12, 2022
- ELSA-2021-4097 Moderate: webkit2gtk3 security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 2, 2021
References
- https://support.apple.com/en-us/HT212804
- https://support.apple.com/en-us/HT212807
- 20210917 APPLE-SA-2021-09-13-3 macOS Big Sur 11.6 mailing-list
- 20210917 APPLE-SA-2021-09-13-1 iOS 14.8 and iPadOS 14.8 mailing-list
- 20210917 APPLE-SA-2021-09-13-5 Safari 14.1.2 mailing-list
- [oss-security] 20210920 WebKitGTK and WPE WebKit Security Advisory WSA-2021-0005 mailing-list
- FEDORA-2021-c00e45b6c0 vendor-advisory
- 20210921 APPLE-SA-2021-09-20-6 Additional information for APPLE-SA-2021-09-13-1 iOS 14.8 and iPadOS 14.8 mailing-list
- 20210921 APPLE-SA-2021-09-20-7 Additional information for APPLE-SA-2021-09-13-3 macOS Big Sur 11.6 mailing-list
- DSA-4975 vendor-advisory
- DSA-4976 vendor-advisory
- https://support.apple.com/kb/HT212824
- 20210924 APPLE-SA-2021-09-23-1 iOS 12.5.5 mailing-list
- FEDORA-2021-edf6957b7d vendor-advisory
- [oss-security] 20211026 WebKitGTK and WPE WebKit Security Advisory WSA-2021-0006 mailing-list
- [oss-security] 20211027 Re: WebKitGTK and WPE WebKit Security Advisory WSA-2021-0006 mailing-list
- [oss-security] 20211027 Re: WebKitGTK and WPE WebKit Security Advisory WSA-2021-0006 mailing-list
- [oss-security] 20211027 Re: WebKitGTK and WPE WebKit Security Advisory WSA-2021-0006 mailing-list