CVE-2018-11646 in the critical feed json
webkitFaviconDatabaseSetIconForPageURL and webkitFaviconDatabaseSetIconURLForPageURL in UIProcess/API/glib/WebKitFaviconDatabase.cpp in Web…
published 2018-06-01 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-3669
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 68.0%
- EPSS 68.0% chance of exploitation in 30 days, percentile 99.3%
- public exploits
- 3
- Metasploit, Exploit-DB
Summary
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.
Patch / fix
- webkit2gtk Debian 14, Debian 13, Debian 12 2.20.3-1
debian advisories DEBIAN-CVE-2018-11646
- webkit2gtk Ubuntu 16.04 LTS 2.20.1-0ubuntu0.16.04.1
ubuntu advisories UBUNTU-CVE-2018-11646
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 SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 +2 more 2.20.3-2.23.8
- webkit2gtk3 SLE Module for Desktop Applications 15, SLE Module for Basesystem 15 2.20.3-3.3.1
suse advisories SUSE-SU-2018:3387-1SUSE-SU-2018:2075-1
- gtk3 openSUSE Tumbleweed 2.32.4-1.1
opensuse advisories openSUSE-SU-2024:11506-1
Timeline
- Published
- First public exploit (Metasploit auxiliary/dos/http/webkitplus)
Exploit prediction
68.02% chance of exploitation in the next 30 days, higher than 99.3% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit auxiliary/dos/http/webkitplus WebKitGTK+ WebKitFaviconDatabase DoS metasploit auxiliary, normal rank, 2018-06-03
- EDB-44876 WebKitGTK+ < 2.21.3 - 'WebKitFaviconDatabase' Denial of Service (Metasploit) dos, 2018-06-11
- EDB-44842 WebKitGTK+ < 2.21.3 - Crash (PoC) local, 2018-06-05
- bugzilla.gnome.org https://bugzilla.gnome.org/show_bug.cgi?id=795740 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
References
-
bugs.webkit.org
/show_bug.cgi?id=186164
issue-tracking, patch, vendor-advisory
-
exploit-db.com
/exploits/44876/
exploit, third-party-advisory, vdb-entry
-
exploit-db.com
/exploits/44842/
exploit, third-party-advisory, vdb-entry
-
bugzilla.gnome.org
/show_bug.cgi?id=795740
exploit, issue-tracking, third-party-advisory
-
security.gentoo.org
/glsa/201808-04
vendor-advisory, third-party-advisory
Sources
- CVE List CVE-2018-11646
- NVD CVE-2018-11646
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.