CRITICAL
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)
Published Feb 24, 2019
9.8
CRITICALCVSS 3.0
EPSS 16.11%
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).
Affected products
No data.
Configuration 1
OR
- ≤ 2.23.90
- ≤ 2.22.6
Configuration 3
OR
- 18.04
- 18.10
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
9.8 CRITICAL NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
16.11% 0.16113
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.16113
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (41 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 16.11% (0.16113) | 96.83th | v5 (v2026.06.15) |
| Sep 22, 2026 | 16.11% (0.16113) | 96.77th | v5 (v2026.06.15) |
| Sep 21, 2026 | 13.18% (0.13180) | 96.25th | v5 (v2026.06.15) |
| Sep 6, 2026 | 16.11% (0.16113) | 96.70th | v5 (v2026.06.15) |
| Sep 5, 2026 | 13.18% (0.13180) | 96.17th | v5 (v2026.06.15) |
| Aug 30, 2026 | 16.11% (0.16113) | 96.69th | v5 (v2026.06.15) |
| Aug 28, 2026 | 13.18% (0.13180) | 96.15th | v5 (v2026.06.15) |
| Aug 24, 2026 | 16.11% (0.16113) | 96.67th | v5 (v2026.06.15) |
| Aug 23, 2026 | 13.18% (0.13180) | 96.14th | v5 (v2026.06.15) |
| Jun 15, 2026 | 16.11% (0.16113) | 96.50th | v5 (v2026.06.15) |
| May 24, 2026 | 15.98% (0.15983) | 94.86th | v4 (v2025.03.14) |
| Jan 25, 2026 | 19.29% (0.19285) | 95.19th | v4 (v2025.03.14) |
| Nov 21, 2025 | 21.51% (0.21507) | 95.49th | v4 (v2025.03.14) |
| Nov 18, 2025 | 26.97% (0.26973) | 96.07th | v4 (v2025.03.14) |
| Oct 5, 2025 | 21.51% (0.21507) | 95.52th | v4 (v2025.03.14) |
| Sep 12, 2025 | 19.17% (0.19172) | 95.13th | v4 (v2025.03.14) |
| Aug 28, 2025 | 16.26% (0.16262) | 94.57th | v4 (v2025.03.14) |
| Mar 30, 2025 | 17.51% (0.17508) | 94.54th | v4 (v2025.03.14) |
| Mar 29, 2025 | 45.77% (0.45766) | 96.49th | v4 (v2025.03.14) |
| Mar 19, 2025 | 17.51% (0.17508) | 94.31th | v4 (v2025.03.14) |
| Mar 17, 2025 | 18.61% (0.18609) | 94.77th | v4 (v2025.03.14) |
| Dec 17, 2024 | 7.12% (0.07116) | 93.94th | v3 (v2023.03.01) |
| Jul 17, 2024 | 9.12% (0.09115) | 94.69th | v3 (v2023.03.01) |
| Jun 4, 2024 | 10.67% (0.10674) | 95.06th | v3 (v2023.03.01) |
| Mar 7, 2024 | 6.08% (0.06076) | 93.32th | v3 (v2023.03.01) |
| Feb 18, 2024 | 4.38% (0.04382) | 92.08th | v3 (v2023.03.01) |
| Feb 3, 2024 | 4.37% (0.04366) | 91.55th | v3 (v2023.03.01) |
| Jan 16, 2024 | 4.47% (0.04473) | 91.59th | v3 (v2023.03.01) |
| Nov 11, 2023 | 10.11% (0.10112) | 94.34th | v3 (v2023.03.01) |
| Oct 22, 2023 | 9.58% (0.09582) | 94.10th | v3 (v2023.03.01) |
| Aug 7, 2023 | 8.44% (0.08436) | 93.55th | v3 (v2023.03.01) |
| Jun 20, 2023 | 8.40% (0.08398) | 93.48th | v3 (v2023.03.01) |
| Apr 21, 2023 | 8.68% (0.08676) | 93.52th | v3 (v2023.03.01) |
| Mar 7, 2023 | 7.87% (0.07866) | 93.17th | v3 (v2023.03.01) |
| Mar 6, 2023 | 10.80% (0.10800) | 94.68th | v2 (v2022.01.01) |
| Apr 1, 2022 | 10.80% (0.10800) | 94.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 45.41% (0.45409) | 97.81th | v2 (v2022.01.01) |
| Feb 3, 2022 | 12.45% (0.12447) | 88.79th | v1 |
| Jan 6, 2022 | 12.45% (0.12447) | 88.65th | v1 |
| Sep 1, 2021 | 12.45% (0.12447) | 95.90th | v1 |
| Apr 14, 2021 | 12.45% (0.12447) | 0.00th | v1 |
Weaknesses (1)
References (8)
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00058.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00005.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- https://bugs.webkit.org/show_bug.cgi?id=184875 x_refsource_MISCIssue TrackingPermissions RequiredThird Party Advisory
- https://github.com/WebKit/webkit/commit/6f9b511a115311b13c06eb58038ddc2c78da5531 x_refsource_MISCPatchThird Party Advisory
- https://trac.webkit.org/changeset/241515/webkit x_refsource_MISCPatchVendor Advisory
- https://usn.ubuntu.com/3948-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.exploit-db.com/exploits/46465/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
- https://www.inputzero.io/2019/02/fuzzing-webkit.html x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00058.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00005.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| https://bugs.webkit.org/show_bug.cgi?id=184875 | x_refsource_MISCIssue TrackingPermissions RequiredThird Party Advisory | |
| https://github.com/WebKit/webkit/commit/6f9b511a115311b13c06eb58038ddc2c78da5531 | x_refsource_MISCPatchThird Party Advisory | |
| https://trac.webkit.org/changeset/241515/webkit | x_refsource_MISCPatchVendor Advisory | |
| https://usn.ubuntu.com/3948-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.exploit-db.com/exploits/46465/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry | |
| https://www.inputzero.io/2019/02/fuzzing-webkit.html | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Feb 24, 2019
Updated Aug 4, 2024
Reserved Feb 16, 2019
Link CVE-2019-8375
CISA Vulnrichment
Updated n/a