7.5

CVE-2018-11646: webkitgtk

CVSS: 7.5v3.0HighModified
AliasesUBUNTU-CVE-2018-11646DEBIAN-CVE-2018-11646
Published 01-06-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-11646 is a high (CVSS 7.5) vulnerability in webkitgtk. EPSS estimates a 68.02% chance of exploitation in the next 30 days, higher than 99.3% of scored vulnerabilities. 4 public exploits are recorded.

Overall risk
54/100
0100
High · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
68.02%
0%100%
Critical · -0.54 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits4reference, exploit-database, metasploit

Advisory lineage

Upstream 0 · Downstream 4 · Related 3
MGASA-2018-0302OPENSUSE-SU-2024:11506-1SUSE-SU-2018:2075-1SUSE-SU-2018:3387-1

Timeline

  1. 01-06-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

68.02%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

-0.54 pp

From 68.56% on 18-09-2026

18-09-202618-10-2026
EPSS score
68.02%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

4 found
  • referenceUnverified

    Exploit Reference (bugzilla.gnome.org)

    Maturity: unknown

  • exploit-databasedoslinuxUnverified

    WebKitGTK+ < 2.21.3 - 'WebKitFaviconDatabase' Denial of Service (Metasploit)

    Maturity: poc

  • exploit-databaselocallinuxUnverified

    WebKitGTK+ < 2.21.3 - Crash (PoC)

    Maturity: poc

Show all 4 exploits
  • MetasploitMetasploitremoteUnverified

    WebKitGTK+ WebKitFaviconDatabase DoS

    auxiliary/dos/http/webkitplus

    Maturity: poc

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu4 products
  • qtwebkit-opensource-srcAll versions (No fix recorded)
  • qtwebkit-sourceAll versions (No fix recorded)
  • webkit2gtk< 2.20.1-0ubuntu0.16.04.1
  • webkitgtkAll versions (No fix recorded)
Debian1 product
  • webkit2gtk< 2.20.3-1
Webkitgtk1 product

3 vendors · 6 products

References

9 links