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Fencer Vulns
high 7.5

CVE-2022-30293 json

In WebKitGTK through 2.36.0 (and WPE WebKit), there is a heap-based buffer overflow in WebCore::TextureMapperLayer::setContentsLayer in Web…

published 2022-05-06 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-52244

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

In WebKitGTK through 2.36.0 (and WPE WebKit), there is a heap-based buffer overflow in WebCore::TextureMapperLayer::setContentsLayer in WebCore/platform/graphics/texmap/TextureMapperLayer.cpp.

Patch / fix

  • wpewebkit Debian 14, Debian 13, Debian 12 2.36.1-1
  • webkit2gtk Debian 14, Debian 13, Debian 12 2.36.1-1

debian advisories DEBIAN-CVE-2022-30293

  • webkit2gtk Ubuntu 20.04 LTS 2.36.2-0ubuntu0.20.04.1
  • webkit2gtk Ubuntu 22.04 LTS 2.36.2-0ubuntu0.22.04.1

ubuntu advisories UBUNTU-CVE-2022-30293

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • webkit2gtk3 RHEL 9 2.36.7-1.el9
  • webkit2gtk3-jsc RHEL 9 2.36.7-1.el9
  • webkit2gtk3 RHEL 8 2.36.7-1.el8
  • glib2 RHEL 8 2.56.4-159.el8
  • glib2-fam RHEL 8 2.56.4-159.el8
  • glib2-tests RHEL 8 2.56.4-159.el8
  • webkit2gtk3-jsc RHEL 8 2.36.7-1.el8
  • webkitgtk4 RHEL 7 ELS 2.48.3-2.el7_9

red hat advisories RHSA-2025:10364RHSA-2022:8054RHSA-2022:7704

  • webkit2gtk3 SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +11 more 2.36.3-2.99.1
  • webkit2gtk3 SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +10 more 2.36.3-150200.35.1
  • webkit2gtk3 SLE Module for Desktop Applications 15 SP4, openSUSE Leap 15.4 2.36.3-150400.4.3.1
  • webkit2gtk4 SLE Module for Development Tools 15 SP4, openSUSE Leap 15.4 2.36.3-150400.4.3.1
  • webkit2gtk3-soup2 SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 2.36.3-150400.4.3.1
  • webkit2gtk3 SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +7 more 2.36.3-150000.3.103.1

suse advisories SUSE-SU-2022:2089-1SUSE-SU-2022:2072-1SUSE-SU-2022:2071-1SUSE-SU-2022:2030-1

  • webkit2gtk3 AlmaLinux 9 2.36.7-1.el9
  • webkit2gtk3-jsc AlmaLinux 9 2.36.7-1.el9
  • webkit2gtk3 AlmaLinux 8 2.36.7-1.el8
  • webkit2gtk3-jsc AlmaLinux 8 2.36.7-1.el8

almalinux advisories ALSA-2022:8054ALSA-2022:7704

  • webkit2gtk3 Rocky Linux 9 2.36.7-1.el9_0
  • webkit2gtk3 Rocky Linux 9 2.36.7-1.el9_1.1
  • webkit2gtk3 Rocky Linux 8 2.36.7-1.el8_6

rocky linux advisories RLSA-2022:8054RLSA-2022:7704

  • webkit2gtk Alpine 3.20, Alpine 3.19, Alpine 3.18 +2 more 2.36.1-r0

alpine advisories ALPINE-CVE-2022-30293

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • wpewebkit Arch Linux 2.36.3-1

arch linux advisories AVG-2759

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-30293 updated cvss 7.5

webkitgtk: Heap buffer overflow in WebCore::TextureMapperLayer::setContentsLayer leading to arbitrary code execution

  • Red Hat Enterprise Linux AppStream (v. 8) webkit2gtk3 2.36.7-1.el8, webkit2gtk3-jsc 2.36.7-1.el8
    fixed: vendor fix RHSA-2022:7704
  • Red Hat Enterprise Linux AppStream (v. 9) webkit2gtk3 2.36.7-1.el9, webkit2gtk3-jsc 2.36.7-1.el9
    fixed: vendor fix RHSA-2022:8054
  • Red Hat Enterprise Linux Server (v. 7 ELS) webkitgtk4 2.48.3-2.el7_9, webkitgtk4-jsc 2.48.3-2.el7_9 Red Hat Enterprise Linux Server Optional (v. 7 ELS) webkitgtk4-doc 2.48.3-2.el7_9, webkitgtk4-devel 2.48.3-2.el7_9, webkitgtk4-debuginfo 2.48.3-2.el7_9, webkitgtk4-jsc-devel 2.48.3-2.el7_9
    fixed: vendor fix RHSA-2025:10364
  • Red Hat CodeReady Linux Builder (v. 8) glib2-doc 2.56.4-159.el8, glib2-static 2.56.4-159.el8, glib2-debuginfo 2.56.4-159.el8, glib2-debugsource 2.56.4-159.el8, glib2-fam-debuginfo 2.56.4-159.el8, glib2-devel-debuginfo 2.56.4-159.el8, +1 more Red Hat Enterprise Linux 7 webkitgtk3, libwebkit2gtk Red Hat Enterprise Linux BaseOS (v. 8) glib2 2.56.4-159.el8, glib2-fam 2.56.4-159.el8, glib2-tests 2.56.4-159.el8
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.22% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/ChijinZ/security_advisories/tree/master/webkitgtk-2.36.0 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.