graphite2: NULL pointer dereference in Segment.cpp in libgraphite2
Published Mar 9, 2018
8.8
HIGHCVSS 3.0
EPSS 2.25%
Description
In libgraphite2 in graphite2 1.3.11, a NULL pointer dereference vulnerability was found in Segment.cpp during a dumbRendering operation, which may allow attackers to cause a denial of service or possibly have unspecified other impact via a crafted .ttf file.
Affected products
No data.
No data.
Red Hat Enterprise Linux 6
firefox
Not affected
Red Hat Enterprise Linux 6
thunderbird
Not affected
Red Hat Enterprise Linux 7
firefox
Not affected
Red Hat Enterprise Linux 7
graphite2
Will not fix
Red Hat Enterprise Linux 7
thunderbird
Not affected
Red Hat Enterprise Linux 8
graphite2
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 6 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 7 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 7 | graphite2 | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 8 | graphite2 | Not affected | n/a |
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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:N/C:P/I:P/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 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 2.25% (0.02245) | 82.28th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.32% (0.02324) | 81.19th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.23% (0.00231) | 43.92th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.42% (0.00416) | 74.32th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.42% (0.00416) | 73.40th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.42% (0.00416) | 70.85th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.49% (0.00486) | 72.27th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.29% (0.01294) | 30.79th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.29% (0.01294) | 0.00th | v1 |
References (8)
- https://access.redhat.com/security/cve/CVE-2018-7999 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1554380 Issue Tracking
- https://github.com/silnrsi/graphite/commit/db132b4731a9b4c9534144ba3a18e65b390e9ff6 x_refsource_MISCPatch
- https://github.com/silnrsi/graphite/issues/22 x_refsource_MISCExploitThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L5F3CK2IPXFCLQZEBEEXONWIABN2E7H2/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LVWOKYZZDEMG6VSG53KAGUOHUIIQ7CND/ vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2018-7999
- https://www.cve.org/CVERecord?id=CVE-2018-7999
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2018-7999 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1554380 | Issue Tracking | |
| https://github.com/silnrsi/graphite/commit/db132b4731a9b4c9534144ba3a18e65b390e9ff6 | x_refsource_MISCPatch | |
| https://github.com/silnrsi/graphite/issues/22 | x_refsource_MISCExploitThird Party Advisory | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L5F3CK2IPXFCLQZEBEEXONWIABN2E7H2/ | vendor-advisoryx_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LVWOKYZZDEMG6VSG53KAGUOHUIIQ7CND/ | vendor-advisoryx_refsource_FEDORA | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-7999 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-7999 |
Change history (0)
No recorded changes yet.