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TI-2010-00399 Aliases CVE-2010-0421GHSA-77cq-2r3w-6xhj

Array index error in the hb_ot_layout_build_glyph_classes function in…

Priority LOW 25CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.02448 84th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gnome:pango:*:*:*:*:*:*:*:*up to 1.27VulnerableGNOME
  • cpe:2.3:a:gnome:pango:*:*:*:*:*:*:*:* Versions up to 1.27 Vulnerable ·GNOME

Remediation

Red Hat 1 advisory

  • RHSA-2010:0140 Released 2010-03-15 · Red Hat rating Moderate
    pango security update
    • Red Hat Desktop version 3 pango-1.2.5-10, pango-1.2.5-10.i386, pango-devel-1.2.5-10 +1
    • Red Hat Enterprise Linux (v. 5 server) pango-1.14.9-8.el5, pango-1.14.9-8.el5.i386, pango-1.14.9-8.el5.ia64 +5
    • Red Hat Enterprise Linux AS version 3 pango-1.2.5-10, pango-1.2.5-10.i386, pango-1.2.5-10.ia64 +5
    • Red Hat Enterprise Linux AS version 4 evolution28-pango-1.14.9-13.el4_8, evolution28-pango-1.14.9-13.el4_8.i386, evolution28-pango-1.14.9-13.el4_8.ia64 +13
    • Red Hat Enterprise Linux Desktop (v. 5 client) pango-1.14.9-8.el5, pango-1.14.9-8.el5.i386
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) pango-1.14.9-8.el5, pango-devel-1.14.9-8.el5, pango-devel-1.14.9-8.el5.i386
    • Red Hat Enterprise Linux Desktop version 4 evolution28-pango-1.14.9-13.el4_8, evolution28-pango-1.14.9-13.el4_8.i386, evolution28-pango-devel-1.14.9-13.el4_8 +5
    • Red Hat Enterprise Linux ES version 3 pango-1.2.5-10, pango-1.2.5-10.i386, pango-1.2.5-10.ia64 +3
    • Red Hat Enterprise Linux ES version 4 evolution28-pango-1.14.9-13.el4_8, evolution28-pango-1.14.9-13.el4_8.i386, evolution28-pango-1.14.9-13.el4_8.ia64 +9
    • Red Hat Enterprise Linux WS version 3 pango-1.2.5-10, pango-1.2.5-10.i386, pango-1.2.5-10.ia64 +3
    • Red Hat Enterprise Linux WS version 4 evolution28-pango-1.14.9-13.el4_8, evolution28-pango-1.14.9-13.el4_8.i386, evolution28-pango-1.14.9-13.el4_8.ia64 +9

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Desktop version 3Fixed RHSA-2010:0140
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2010:0140
Red Hat Enterprise Linux AS version 3Fixed RHSA-2010:0140
Red Hat Enterprise Linux AS version 4Fixed RHSA-2010:0140
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2010:0140
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2010:0140
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2010:0140
Red Hat Enterprise Linux ES version 3Fixed RHSA-2010:0140
Red Hat Enterprise Linux ES version 4Fixed RHSA-2010:0140
Red Hat Enterprise Linux WS version 3Fixed RHSA-2010:0140
Red Hat Enterprise Linux WS version 4Fixed RHSA-2010:0140

Timeline

  1. 2026-10-02 Threatist record created from CVE-2010-0421
  2. 2026-10-03 Alias added: GHSA-77cq-2r3w-6xhj

References

Patch 1

Advisory 6

Other 5

  • TI-2019-16033 Out-of-bounds write in GNOME Pango CVSS 3.1CRITICAL 9.8
  • TI-2011-00020 Heap-based buffer overflow in the pango_ft2_font_render_box_glyph function in… CVSS 2.0HIGH 7.6
  • TI-2011-02823 Heap-based buffer overflow in the Lookup_MarkMarkPos function in the HarfBuzz module… CVSS 2.0HIGH 9.3
  • TI-2018-10814 libpango in Pango 1.40.8 through 1.42.3, as used in hexchat and other products, allows… CVSS 3.1MEDIUM 6.5
  • TI-2011-00060 The hb_buffer_ensure function in hb-buffer.c in HarfBuzz, as used in Pango 1.28.3… CVSS 2.0MEDIUM 6.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences