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Fencer Vulns
high 8.8

CVE-2019-8644 json

Multiple memory corruption issues were addressed with improved memory handling.

published 2019-12-18 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-18034

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

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, 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.

Patch / fix

  • Apple iOS iOS 12.4
  • Apple macOS macOS Mojave 10.14.6
  • Apple tvOS tvOS 12.4
  • Apple Safari Safari 12.1.2
  • Apple iTunes for Windows iTunes for Windows 12.9.6
  • Apple iCloud for Windows iCloud for Windows 7.13
  • Apple iCloud for Windows (Microsoft Store) iCloud for Windows 10.6
  • webkit2gtk Debian 14, Debian 13, Debian 12 2.24.4-1

debian advisories DEBIAN-CVE-2019-8644

  • webkit2gtk Ubuntu 18.04 LTS 2.24.4-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2019-8644

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

  • webkitgtk4 RHEL 7 2.28.2-2.el7
  • webkitgtk4-jsc RHEL 7 2.28.2-2.el7
  • webkit2gtk3 RHEL 8 2.24.4-2.el8_1
  • webkit2gtk3-jsc RHEL 8 2.24.4-2.el8_1
  • webkit2gtk3-plugin-process-gtk2 RHEL 8 2.24.4-2.el8_1

red hat advisories RHSA-2020:4035RHEA-2019:4262

  • webkit2gtk3 SLES 12 SP4, SLES 12 SP3-BCL, SLES 12 SP2-BCL +14 more 2.24.4-2.47.1
  • webkit2gtk3 SLE Module for Desktop Applications 15 SP1, SLE Module for Desktop Applications 15, SLE Module for Basesystem 15 SP1 +1 more 2.24.4-3.31.1

suse advisories SUSE-SU-2019:2345-2SUSE-SU-2019:2428-1SUSE-SU-2019:2345-1

  • gtk3 openSUSE Tumbleweed 2.32.4-1.1
  • webkit2gtk3 openSUSE Leap 15.1 2.24.4-lp151.2.6.1
  • webkit2gtk3 openSUSE Leap 15.0 2.24.4-lp150.2.25.1

opensuse advisories openSUSE-SU-2024:11506-1openSUSE-SU-2019:2208-1openSUSE-SU-2019:2207-1

  • webkit2gtk Alpine 3.20, Alpine 3.19, Alpine 3.18 +8 more 2.24.3-r0

alpine advisories ALPINE-CVE-2019-8644

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

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-2019-8644 updated cvss 8.8

webkitgtk: Multiple memory corruption issues leading to arbitrary code execution

  • Red Hat Enterprise Linux 6 webkitgtk
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 webkitgtk3, libwebkit2gtk
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux AppStream (v. 8) webkit2gtk3 2.24.4-2.el8_1, webkit2gtk3-jsc 2.24.4-2.el8_1, webkit2gtk3-plugin-process-gtk2 2.24.4-2.el8_1
    fixed: vendor fix RHEA-2019:4262
  • Red Hat Enterprise Linux Client (v. 7) webkitgtk4 2.28.2-2.el7, webkitgtk4-jsc 2.28.2-2.el7 Red Hat Enterprise Linux Client Optional (v. 7) webkitgtk4-doc 2.28.2-2.el7, webkitgtk4-devel 2.28.2-2.el7, webkitgtk4-debuginfo 2.28.2-2.el7, webkitgtk4-jsc-devel 2.28.2-2.el7 Red Hat Enterprise Linux ComputeNode (v. 7) webkitgtk4 2.28.2-2.el7, webkitgtk4-jsc 2.28.2-2.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) webkitgtk4-doc 2.28.2-2.el7, webkitgtk4-devel 2.28.2-2.el7, webkitgtk4-debuginfo 2.28.2-2.el7, webkitgtk4-jsc-devel 2.28.2-2.el7 Red Hat Enterprise Linux Server (v. 7) webkitgtk4 2.28.2-2.el7, webkitgtk4-jsc 2.28.2-2.el7 Red Hat Enterprise Linux Server Optional (v. 7) webkitgtk4-doc 2.28.2-2.el7, webkitgtk4-devel 2.28.2-2.el7, webkitgtk4-debuginfo 2.28.2-2.el7, webkitgtk4-jsc-devel 2.28.2-2.el7
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) webkitgtk4 2.28.2-2.el7, webkitgtk4-jsc 2.28.2-2.el7 Red Hat Enterprise Linux Workstation Optional (v. 7) webkitgtk4-doc 2.28.2-2.el7
    fixed: vendor fix RHSA-2020:4035

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

1.75% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • Apple iOS
  • Apple macOS
  • Apple tvOS
  • Apple Safari
  • Apple iTunes for Windows
  • Apple iCloud for Windows
  • Apple iCloud for Windows (Microsoft Store)

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.