harfbuzz: DoS due to GPOS and GSUB table mishandling
Published Nov 15, 2018
6.5
MEDIUMCVSS 3.0
EPSS 1.54%
Description
HarfBuzz before 1.0.4 allows remote attackers to cause a denial of service (invalid read of two bytes and application crash) because of GPOS and GSUB table mishandling, related to hb-ot-layout-gpos-table.hh, hb-ot-layout-gsub-table.hh, and hb-ot-layout-gsubgpos-private.hh.
Affected products
No data.
- < 1.0.4
No data.
Red Hat Enterprise Linux 6
chromium-browser
Not affected
Red Hat Enterprise Linux 6
firefox
Not affected
Red Hat Enterprise Linux 6
libreoffice
Will not fix
Red Hat Enterprise Linux 6
thunderbird
Not affected
Red Hat Enterprise Linux 7
harfbuzz
Not affected
Red Hat Enterprise Linux 8
harfbuzz
Not affected
Red Hat Enterprise Linux 8
mingw-harfbuzz
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | chromium-browser | Not affected | n/a |
| Red Hat Enterprise Linux 6 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 6 | libreoffice | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 7 | harfbuzz | Not affected | n/a |
| Red Hat Enterprise Linux 8 | harfbuzz | Not affected | n/a |
| Red Hat Enterprise Linux 8 | mingw-harfbuzz | 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:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.54% (0.01542) | 74.02th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.54% (0.01542) | 71.60th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.05% (0.01054) | 75.59th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.26% (0.02257) | 74.31th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.05% (0.01054) | 76.05th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.14% (0.00140) | 51.09th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.14% (0.00137) | 48.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.16% (0.00164) | 51.19th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
References (5)
- https://access.redhat.com/security/cve/CVE-2015-9274 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1652081 Issue Tracking
- https://github.com/harfbuzz/harfbuzz/commit/c917965b9e6fe2b21ed6c51559673288fa3af4b7 x_refsource_MISCPatchVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-9274
- https://www.cve.org/CVERecord?id=CVE-2015-9274
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2015-9274 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1652081 | Issue Tracking | |
| https://github.com/harfbuzz/harfbuzz/commit/c917965b9e6fe2b21ed6c51559673288fa3af4b7 | x_refsource_MISCPatchVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-9274 | ||
| https://www.cve.org/CVERecord?id=CVE-2015-9274 |
Change history (0)
No recorded changes yet.