cairo: Invalid free in cairo_ft_apply_variations() resulting in a denial of service
Published Dec 5, 2018
6.5
MEDIUMCVSS 3.0
EPSS 1.71%
Description
cairo 1.16.0, in cairo_ft_apply_variations() in cairo-ft-font.c, would free memory using a free function incompatible with WebKit's fastMalloc, leading to an application crash with a "free(): invalid pointer" error.
Affected products
No data.
- 1.16.0
No data.
Red Hat Enterprise Linux 5
cairo
Not affected
Red Hat Enterprise Linux 6
cairo
Not affected
Red Hat Enterprise Linux 7
cairo
Not affected
Red Hat Enterprise Linux 8
cairo
Fix deferred
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | cairo | Not affected | n/a |
| Red Hat Enterprise Linux 6 | cairo | Not affected | n/a |
| Red Hat Enterprise Linux 7 | cairo | Not affected | n/a |
| Red Hat Enterprise Linux 8 | cairo | Fix deferred | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This vulnerability was rated as LOW severity because it requires the victim to open a specially crafted file, it doesn’t compromise system security, it can cause the application to crash temporarily.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.71% (0.01714) | 76.57th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.71% (0.01714) | 74.35th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.09% (0.00091) | 39.47th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.09% (0.00091) | 38.23th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.09% (0.00088) | 36.20th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.08% (0.00079) | 32.31th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.10% (0.00098) | 39.29th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.66% (0.00663) | 18.75th | v1 |
| Jan 6, 2022 | 0.66% (0.00663) | 18.17th | v1 |
| Sep 1, 2021 | 0.66% (0.00663) | 47.40th | v1 |
| Apr 14, 2021 | 0.66% (0.00663) | 0.00th | v1 |
References (6)
- https://access.redhat.com/security/cve/CVE-2018-19876 Vendor Advisory
- https://bugs.webkit.org/show_bug.cgi?id=191595 x_refsource_MISCIssue TrackingPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1661454 Issue Tracking
- https://gitlab.freedesktop.org/cairo/cairo/merge_requests/5 x_refsource_MISCPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-19876
- https://www.cve.org/CVERecord?id=CVE-2018-19876
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2018-19876 | Vendor Advisory | |
| https://bugs.webkit.org/show_bug.cgi?id=191595 | x_refsource_MISCIssue TrackingPatchThird Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1661454 | Issue Tracking | |
| https://gitlab.freedesktop.org/cairo/cairo/merge_requests/5 | x_refsource_MISCPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-19876 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-19876 |
Change history (0)
No recorded changes yet.