CVE-2018-11646

Description

webkitFaviconDatabaseSetIconForPageURL and webkitFaviconDatabaseSetIconURLForPageURL in UIProcess/API/glib/WebKitFaviconDatabase.cpp in WebKit, as used in WebKitGTK+ through 2.21.3, mishandle an unset pageURL, leading to an application crash.

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	webkit2gtk	2.20.3-1	—
Debian 13	webkit2gtk	2.20.3-1	—
Debian 12	webkit2gtk	2.20.3-1	—

Ubuntu

Security tracker ↗

Release	Package	Fixed in	Advisory
Ubuntu 24.04 LTS	qtwebkit-opensource-src	No fix yet	—
Ubuntu 22.04 LTS	qtwebkit-opensource-src	No fix yet	—
Ubuntu 20.04 LTS	qtwebkit-opensource-src	No fix yet	—
Ubuntu 18.04 LTS	webkitgtk +2	No fix yet	—
Ubuntu 16.04 LTS	webkit2gtk	2.20.1-0ubuntu0.16.04.1	—
Ubuntu 16.04 LTS	webkitgtk +2	No fix yet	—

SUSE

Security tracker ↗

Release	Package	Fixed in	Advisory
SLES 15	webkit2gtk3	2.20.3-3.3.1	SUSE-SU-2018:2075-1
SLES 12 SP3	webkit2gtk3	2.20.3-2.23.8	SUSE-SU-2018:3387-1

Show 1 more (older releases, extended support, other products)

Release	Package	Fixed in	Advisory
SLES for SAP 12 SP3	webkit2gtk3	2.20.3-2.23.8	SUSE-SU-2018:3387-1

openSUSE

Security tracker ↗

Release	Package	Fixed in	Advisory
openSUSE Tumbleweed	gtk3	2.32.4-1.1	openSUSE-SU-2024:11506-1

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.