HIGH
The getImageData function in the ImageBufferCairo class in WebCore/platform/graphics/cairo/ImageBufferCairo.cpp in WebKit, as used in WebKitGTK+ prior to version 2.20.3 and WPE WebKit prior to version 2.20.1, is vulnerable to a heap-based buffer overflow triggered by an integer overflow, which could be abused by crafted HTML content
Published Jun 19, 2018
8.8
HIGHCVSS 3.0
EPSS 10.39%
Description
The getImageData function in the ImageBufferCairo class in WebCore/platform/graphics/cairo/ImageBufferCairo.cpp in WebKit, as used in WebKitGTK+ prior to version 2.20.3 and WPE WebKit prior to version 2.20.1, is vulnerable to a heap-based buffer overflow triggered by an integer overflow, which could be abused by crafted HTML content.
Affected products
No data.
Configuration 1
OR
- 16.04
- 17.10
- 18.04
Configuration 2
- < 2.20.3
Configuration 3
- < 2.20.1
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.
8.8 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
6.8 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
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.
10.39% 0.10394
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.10394
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 (38 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 10.39% (0.10394) | 95.60th | v5 (v2026.06.15) |
| Sep 22, 2026 | 10.39% (0.10394) | 95.52th | v5 (v2026.06.15) |
| Sep 21, 2026 | 8.37% (0.08368) | 94.79th | v5 (v2026.06.15) |
| Sep 6, 2026 | 10.39% (0.10394) | 95.42th | v5 (v2026.06.15) |
| Sep 5, 2026 | 8.37% (0.08368) | 94.67th | v5 (v2026.06.15) |
| Aug 30, 2026 | 10.39% (0.10394) | 95.39th | v5 (v2026.06.15) |
| Aug 28, 2026 | 8.37% (0.08368) | 94.64th | v5 (v2026.06.15) |
| Aug 24, 2026 | 10.39% (0.10394) | 95.37th | v5 (v2026.06.15) |
| Aug 23, 2026 | 8.47% (0.08474) | 94.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 10.53% (0.10525) | 95.17th | v5 (v2026.06.15) |
| Jan 3, 2026 | 39.00% (0.38999) | 97.15th | v4 (v2025.03.14) |
| Nov 21, 2025 | 40.11% (0.40114) | 97.16th | v4 (v2025.03.14) |
| Nov 18, 2025 | 53.13% (0.53134) | 97.86th | v4 (v2025.03.14) |
| May 20, 2025 | 40.11% (0.40114) | 97.14th | v4 (v2025.03.14) |
| Mar 30, 2025 | 43.22% (0.43221) | 97.23th | v4 (v2025.03.14) |
| Mar 29, 2025 | 45.91% (0.45910) | 96.50th | v4 (v2025.03.14) |
| Mar 17, 2025 | 43.22% (0.43221) | 97.19th | v4 (v2025.03.14) |
| Jan 20, 2025 | 20.31% (0.20309) | 96.39th | v3 (v2023.03.01) |
| Dec 17, 2024 | 25.00% (0.24999) | 96.67th | v3 (v2023.03.01) |
| Jul 4, 2024 | 59.90% (0.59902) | 97.79th | v3 (v2023.03.01) |
| Apr 3, 2024 | 61.97% (0.61969) | 97.75th | v3 (v2023.03.01) |
| Nov 10, 2023 | 63.18% (0.63177) | 97.51th | v3 (v2023.03.01) |
| Sep 28, 2023 | 66.76% (0.66760) | 97.53th | v3 (v2023.03.01) |
| Aug 6, 2023 | 81.88% (0.81881) | 97.93th | v3 (v2023.03.01) |
| Jul 18, 2023 | 86.60% (0.86604) | 98.11th | v3 (v2023.03.01) |
| Jul 8, 2023 | 88.95% (0.88954) | 98.24th | v3 (v2023.03.01) |
| Jul 1, 2023 | 87.37% (0.87366) | 98.14th | v3 (v2023.03.01) |
| Jun 13, 2023 | 88.99% (0.88990) | 98.21th | v3 (v2023.03.01) |
| May 11, 2023 | 90.05% (0.90049) | 98.26th | v3 (v2023.03.01) |
| May 8, 2023 | 91.31% (0.91307) | 98.35th | v3 (v2023.03.01) |
| Mar 7, 2023 | 92.27% (0.92270) | 98.37th | 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 | 10.80% (0.10800) | 87.78th | v2 (v2022.01.01) |
| Feb 3, 2022 | 8.31% (0.08307) | 85.36th | v1 |
| Jan 6, 2022 | 8.31% (0.08307) | 85.19th | v1 |
| Sep 1, 2021 | 8.31% (0.08307) | 92.78th | v1 |
| Apr 14, 2021 | 8.31% (0.08307) | 0.00th | v1 |
Weaknesses (2)
References (8)
- http://packetstormsecurity.com/files/148200/WebKitGTK-Data-Leak-Code-Execution.html x_refsource_MISCThird Party AdvisoryVDB Entry
- http://www.openwall.com/lists/oss-security/2018/06/14/1 mailing-listx_refsource_MLISTMailing ListTechnical Description
- http://www.securityfocus.com/archive/1/542087/100/0/threaded mailing-listx_refsource_BUGTRAQ
- https://bugs.webkit.org/show_bug.cgi?id=186384 x_refsource_MISCPermissions RequiredVendor Advisory
- https://security.gentoo.org/glsa/201808-04 vendor-advisoryx_refsource_GENTOO
- https://trac.webkit.org/changeset/232618 x_refsource_MISCPatchThird Party AdvisoryVendor Advisory
- https://usn.ubuntu.com/3687-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.exploit-db.com/exploits/45205/ exploitx_refsource_EXPLOIT-DB
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/148200/WebKitGTK-Data-Leak-Code-Execution.html | x_refsource_MISCThird Party AdvisoryVDB Entry | |
| http://www.openwall.com/lists/oss-security/2018/06/14/1 | mailing-listx_refsource_MLISTMailing ListTechnical Description | |
| http://www.securityfocus.com/archive/1/542087/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| https://bugs.webkit.org/show_bug.cgi?id=186384 | x_refsource_MISCPermissions RequiredVendor Advisory | |
| https://security.gentoo.org/glsa/201808-04 | vendor-advisoryx_refsource_GENTOO | |
| https://trac.webkit.org/changeset/232618 | x_refsource_MISCPatchThird Party AdvisoryVendor Advisory | |
| https://usn.ubuntu.com/3687-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.exploit-db.com/exploits/45205/ | exploitx_refsource_EXPLOIT-DB |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jun 19, 2018
Updated Aug 5, 2024
Reserved Jun 13, 2018
Link CVE-2018-12293
CISA Vulnrichment
Updated n/a