libpangoft2 segfaults on forged font files
Published Mar 18, 2010
4.3
MEDIUMCVSS 2.0
EPSS 2.45%
Description
Array index error in the hb_ot_layout_build_glyph_classes function in pango/opentype/hb-ot-layout.cc in Pango before 1.27.1 allows context-dependent attackers to cause a denial of service (application crash) via a crafted font file, related to building a synthetic Glyph Definition (aka GDEF) table by using this font's charmap and the Unicode property database.
Affected products
No data.
No data.
Red Hat Enterprise Linux 3
pango-0:1.2.5-10
Fixed · RHSA-2010:0140
Red Hat Enterprise Linux 4
evolution28-pango-0:1.14.9-13.el4_8
Fixed · RHSA-2010:0140
Red Hat Enterprise Linux 4
pango-0:1.6.0-16.el4_8
Fixed · RHSA-2010:0140
Red Hat Enterprise Linux 5
pango-0:1.14.9-8.el5
Fixed · RHSA-2010:0140
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 3 | pango-0:1.2.5-10 | Fixed | RHSA-2010:0140 |
| Red Hat Enterprise Linux 4 | evolution28-pango-0:1.14.9-13.el4_8 | Fixed | RHSA-2010:0140 |
| Red Hat Enterprise Linux 4 | pango-0:1.6.0-16.el4_8 | Fixed | RHSA-2010:0140 |
| Red Hat Enterprise Linux 5 | pango-0:1.14.9-8.el5 | Fixed | RHSA-2010:0140 |
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.
No CVSS v3.0 score for this CVE.
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 3, 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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 2.45% (0.02448) | 83.81th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.45% (0.02448) | 82.20th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.66% (0.01657) | 80.36th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.09% (0.03090) | 77.86th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.66% (0.01657) | 80.79th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.25% (0.00250) | 65.47th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.25% (0.00250) | 63.97th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.25% (0.00250) | 61.05th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
References (18)
- http://ftp.gnome.org/pub/GNOME/sources/pango/1.27/pango-1.27.1.tar.bz2 x_refsource_CONFIRMPatch
- http://lists.opensuse.org/opensuse-security-announce/2010-04/msg00002.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00002.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/39041 third-party-advisoryx_refsource_SECUNIA
- http://securitytracker.com/id?1023711 vdb-entryx_refsource_SECTRACK
- http://www.debian.org/security/2010/dsa-2019 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:121 vendor-advisoryx_refsource_MANDRIVA
- http://www.redhat.com/support/errata/RHSA-2010-0140.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/38760 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2010/0627 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2010/0661 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2010/1552 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2010-0421 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=555831 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2010-0421
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9417 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2010-0421
Change history (0)
No recorded changes yet.