CVE-2019-8375
The UIProcess subsystem in WebKit, as used in WebKitGTK through 2.23.90 and WebKitGTK+ through 2.22.6 and other products, does not prevent…
- 9.8CriticalCVSS base score
- 15.7%Exploitation in 30 daysEPSS · top 3.1% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
The UIProcess subsystem in WebKit, as used in WebKitGTK through 2.23.90 and WebKitGTK+ through 2.22.6 and other products, does not prevent the script dialog size from exceeding the web view size, which allows remote attackers to cause a denial of service (Buffer Overflow) or possibly have unspecified other impact, related to UIProcess/API/gtk/WebKitScriptDialogGtk.cpp, UIProcess/API/gtk/WebKitScriptDialogImpl.cpp, and UIProcess/API/gtk/WebKitWebViewGtk.cpp, as demonstrated by GNOME Web (aka Epiphany).
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it. A reference of the record is tagged as an exploit.
Show the exploits2
Exploit-DB1 entry
- WebKitGTK 2.23.90 / WebKitGTK+ 2.22.6 - Denial of Service (Exploit-DB entry) (opens in a new tab)
EDB-ID 46465dos, linuxpublished 28 Feb 2019Not verified
References tagged exploit1 reference
- 46465 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
- 8 days later
· 8 days later
Published
- 5 years later
· 5 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 15.7% · top 3.1% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
n/a
- affected n/a
References
8
- https://trac.webkit.org/changeset/241515/webkit (opens in a new tab)x_refsource_MISCx_transferred
- 46465 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- https://github.com/WebKit/webkit/commit/6f9b511a115311b13c06eb58038ddc2c78da5531 (opens in a new tab)x_refsource_MISCx_transferred
- https://www.inputzero.io/2019/02/fuzzing-webkit.html (opens in a new tab)x_refsource_MISCx_transferred
- https://bugs.webkit.org/show_bug.cgi?id=184875 (opens in a new tab)x_refsource_MISCx_transferred
- openSUSE-SU-2019:1206 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- USN-3948-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- openSUSE-SU-2019:1316 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2019-17765 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2019-8375)Record last updated .