Vulnerability · Published Apr 2, 2021 · Assigned by apple
CVE-2021-1844
High 8.8
In plain English
A high-severity security flaw in macOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.4% (higher than 84% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)2.4%top 16.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 14.4.1 and iPadOS 14.4.1, Safari 14.0.3 (v. 14610.4.3.1.7 and 15610.4.3.1.7), watchOS 7.3.2, macOS Big Sur 11.2.3. Processing maliciously crafted web content may lead to arbitrary code execution.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | LibRaw | 0.19.5-3.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | LibRaw-devel | 0.19.5-3.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | accountsservice | 0.6.55-2.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | accountsservice-devel | 0.6.55-2.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | accountsservice-libs | 0.6.55-2.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gdm | 1:40.0-15.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-autoar | 0.2.3-2.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-calculator | 3.28.2-2.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-classic-session | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-control-center | 3.28.2-28.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-control-center-filesystem | 3.28.2-28.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-online-accounts | 3.28.2-3.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-online-accounts-devel | 3.28.2-3.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-session | 3.28.1-13.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-session-kiosk-session | 3.28.1-13.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-session-wayland-session | 3.28.1-13.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-session-xsession | 3.28.1-13.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-settings-daemon | 3.32.0-16.el8.alma | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell | 3.32.2-40.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-apps-menu | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-auto-move-windows | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-common | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-dash-to-dock | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-desktop-icons | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-disable-screenshield | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-drive-menu | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-gesture-inhibitor | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-horizontal-workspaces | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-launch-new-instance | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-native-window-placement | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-no-hot-corner | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-panel-favorites | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-places-menu | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-screenshot-window-sizer | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-systemMonitor | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-top-icons | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-updates-dialog | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-user-theme | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-window-grouper | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-window-list | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-windowsNavigator | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-shell-extension-workspace-indicator | 3.32.1-20.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-software | 3.36.1-10.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gnome-software-devel | 3.36.1-10.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gsettings-desktop-schemas | 3.32.0-6.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gsettings-desktop-schemas-devel | 3.32.0-6.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gtk-update-icon-cache | 3.22.30-8.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gtk3 | 3.22.30-8.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gtk3-devel | 3.22.30-8.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | gtk3-immodule-xim | 3.22.30-8.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | mutter | 3.32.2-60.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | mutter-devel | 3.32.2-60.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | vino | 3.22.0-11.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | webkit2gtk3 | 2.32.3-2.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | webkit2gtk3-devel | 2.32.3-2.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | webkit2gtk3-jsc | 2.32.3-2.el8 | ALSA-2021:4381 |
| AlmaLinux:8 | webkit2gtk3-jsc-devel | 2.32.3-2.el8 | ALSA-2021:4381 |
| Alpine:v3.20 | webkit2gtk | 2.32.0-r0 | ALPINE-CVE-2021-1844 |
| Debian:12 | webkit2gtk | 2.32.0-2 | DEBIAN-CVE-2021-1844 |
| Debian:13 | webkit2gtk | 2.32.0-2 | DEBIAN-CVE-2021-1844 |
| Debian:14 | webkit2gtk | 2.32.0-2 | DEBIAN-CVE-2021-1844 |
| Debian:12 | wpewebkit | 2.32.0-2 | DEBIAN-CVE-2021-1844 |
| Debian:13 | wpewebkit | 2.32.0-2 | DEBIAN-CVE-2021-1844 |
| Debian:14 | wpewebkit | 2.32.0-2 | DEBIAN-CVE-2021-1844 |
| Rocky Linux:8 | LibRaw | 0:0.19.5-3.el8 | RLSA-2021:4381 |
| Rocky Linux:8 | accountsservice | 0:0.6.55-2.el8 | RLSA-2021:4381 |
| Rocky Linux:8 | gdm | 1:40.0-15.el8 | RLSA-2021:4381 |
| Rocky Linux:8 | gnome-autoar | 0:0.2.3-2.el8 | RLSA-2021:4381 |
| Rocky Linux:8 | gnome-calculator | 0:3.28.2-2.el8 | RLSA-2021:4381 |
| Rocky Linux:8 | gnome-control-center | 0:3.28.2-28.el8 | RLSA-2021:4381 |
| Rocky Linux:8 | gnome-online-accounts | 0:3.28.2-3.el8 | RLSA-2021:4381 |
| Rocky Linux:8 | gnome-session | 0:3.28.1-13.el8 | RLSA-2021:4381 |
| Rocky Linux:8 | gnome-settings-daemon | 0:3.32.0-16.el8 | RLSA-2021:4381 |
| Rocky Linux:8 | gnome-settings-daemon | 0:3.32.0-16.el8_6.1 | RLSA-2021:4381 |
| Rocky Linux:8 | gnome-shell | 0:3.32.2-40.el8 | RLSA-2021:4381 |
| Rocky Linux:8 | gnome-shell-extensions | 0:3.32.1-20.el8 | RLSA-2021:4381 |
| Rocky Linux:8 | gnome-software | 0:3.36.1-10.el8 | RLSA-2021:4381 |
| Rocky Linux:8 | gsettings-desktop-schemas | 0:3.32.0-6.el8 | RLSA-2021:4381 |
| Rocky Linux:8 | gtk3 | 0:3.22.30-8.el8 | RLSA-2021:4381 |
| Rocky Linux:8 | mutter | 0:3.32.2-60.el8 | RLSA-2021:4381 |
| Rocky Linux:8 | vino | 0:3.22.0-11.el8 | RLSA-2021:4381 |
| Rocky Linux:8 | webkit2gtk3 | 0:2.32.3-2.el8 | RLSA-2021:4381 |
| Ubuntu:22.04:LTS | qtwebkit-opensource-src | no fix listed | UBUNTU-CVE-2021-1844 |
| Ubuntu:24.04:LTS | qtwebkit-opensource-src | no fix listed | UBUNTU-CVE-2021-1844 |
| Ubuntu:22.04:LTS | wpewebkit | no fix listed | UBUNTU-CVE-2021-1844 |
Affected products (as reported)
References
- https://support.apple.com/en-us/HT212220 x_refsource_MISC
- https://support.apple.com/en-us/HT212221 x_refsource_MISC
- https://support.apple.com/en-us/HT212222 x_refsource_MISC
- https://support.apple.com/en-us/HT212223 x_refsource_MISC
- FEDORA-2021-864dc37032 vendor-advisory, x_refsource_FEDORA
- https://support.apple.com/kb/HT212323 x_refsource_CONFIRM
- 20210427 APPLE-SA-2021-04-26-6 tvOS 14.5 mailing-list, x_refsource_FULLDISC
- DSA-4923 vendor-advisory, x_refsource_DEBIAN