Integer overflow in the pango_glyph_string_set_size function in pango/glyphstring.c in…
Priority LOW 37CWE-189Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-189 and the CVSS impact.
Summary
Integer overflow in the pango_glyph_string_set_size function in pango/glyphstring.c in Pango before 1.24 allows context-dependent attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a long glyph string that triggers a heap-based buffer overflow, as demonstrated by a long document.location value in Firefox.
Why it matters now
EPSS 0.0413 90th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:pango:pango:*:*:*:*:*:*:*:* | up to 1.22 | Vulnerable | Pango |
| cpe:2.3:a:pango:pango:1.2:*:*:*:*:*:*:* | 1.2 | Vulnerable | Pango |
| cpe:2.3:a:pango:pango:1.4:*:*:*:*:*:*:* | 1.4 | Vulnerable | Pango |
| cpe:2.3:a:pango:pango:1.6:*:*:*:*:*:*:* | 1.6 | Vulnerable | Pango |
| cpe:2.3:a:pango:pango:1.8:*:*:*:*:*:*:* | 1.8 | Vulnerable | Pango |
| cpe:2.3:a:pango:pango:1.10:*:*:*:*:*:*:* | 1.10 | Vulnerable | Pango |
| cpe:2.3:a:pango:pango:1.12:*:*:*:*:*:*:* | 1.12 | Vulnerable | Pango |
| cpe:2.3:a:pango:pango:1.14:*:*:*:*:*:*:* | 1.14 | Vulnerable | Pango |
| cpe:2.3:a:pango:pango:1.16:*:*:*:*:*:*:* | 1.16 | Vulnerable | Pango |
| cpe:2.3:a:pango:pango:1.18:*:*:*:*:*:*:* | 1.18 | Vulnerable | Pango |
- cpe:2.3:a:pango:pango:*:*:*:*:*:*:*:* Versions up to 1.22 Vulnerable ·Pango
- cpe:2.3:a:pango:pango:1.2:*:*:*:*:*:*:* Versions 1.2 Vulnerable ·Pango
- cpe:2.3:a:pango:pango:1.4:*:*:*:*:*:*:* Versions 1.4 Vulnerable ·Pango
- cpe:2.3:a:pango:pango:1.6:*:*:*:*:*:*:* Versions 1.6 Vulnerable ·Pango
- cpe:2.3:a:pango:pango:1.8:*:*:*:*:*:*:* Versions 1.8 Vulnerable ·Pango
- cpe:2.3:a:pango:pango:1.10:*:*:*:*:*:*:* Versions 1.10 Vulnerable ·Pango
- cpe:2.3:a:pango:pango:1.12:*:*:*:*:*:*:* Versions 1.12 Vulnerable ·Pango
- cpe:2.3:a:pango:pango:1.14:*:*:*:*:*:*:* Versions 1.14 Vulnerable ·Pango
- cpe:2.3:a:pango:pango:1.16:*:*:*:*:*:*:* Versions 1.16 Vulnerable ·Pango
- cpe:2.3:a:pango:pango:1.18:*:*:*:*:*:*:* Versions 1.18 Vulnerable ·Pango
Remediation
Red Hat 1 advisory
- RHSA-2009:0476 Released 2009-05-08 · Red Hat rating Importantpango security update
- Red Hat Desktop version 3 pango-1.2.5-8, pango-1.2.5-8.i386, pango-devel-1.2.5-8 +1
- Red Hat Enterprise Linux (v. 5 server) pango-1.14.9-5.el5_3, pango-1.14.9-5.el5_3.i386, pango-1.14.9-5.el5_3.ia64 +5
- Red Hat Enterprise Linux AS version 3 pango-1.2.5-8, pango-1.2.5-8.i386, pango-1.2.5-8.ia64 +5
- Red Hat Enterprise Linux AS version 4 evolution28-pango-1.14.9-11.el4_7, evolution28-pango-1.14.9-11.el4_7.i386, evolution28-pango-1.14.9-11.el4_7.ia64 +13
- Red Hat Enterprise Linux Desktop (v. 5 client) pango-1.14.9-5.el5_3, pango-1.14.9-5.el5_3.i386
- Red Hat Enterprise Linux Desktop Workstation (v. 5 client) pango-1.14.9-5.el5_3, pango-devel-1.14.9-5.el5_3, pango-devel-1.14.9-5.el5_3.i386
- Red Hat Enterprise Linux Desktop version 4 evolution28-pango-1.14.9-11.el4_7, evolution28-pango-1.14.9-11.el4_7.i386, evolution28-pango-devel-1.14.9-11.el4_7 +5
- Red Hat Enterprise Linux ES version 3 pango-1.2.5-8, pango-1.2.5-8.i386, pango-1.2.5-8.ia64 +3
- Red Hat Enterprise Linux ES version 4 evolution28-pango-1.14.9-11.el4_7, evolution28-pango-1.14.9-11.el4_7.i386, evolution28-pango-1.14.9-11.el4_7.ia64 +9
- Red Hat Enterprise Linux WS version 3 pango-1.2.5-8, pango-1.2.5-8.i386, pango-1.2.5-8.ia64 +3
- Red Hat Enterprise Linux WS version 4 evolution28-pango-1.14.9-11.el4_7, evolution28-pango-1.14.9-11.el4_7.i386, evolution28-pango-1.14.9-11.el4_7.ia64 +9
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Desktop version 3 | Fixed | RHSA-2009:0476 |
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2009:0476 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2009:0476 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2009:0476 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2009:0476 |
| Red Hat Enterprise Linux Desktop Workstation (v. 5 client) | Fixed | RHSA-2009:0476 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2009:0476 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2009:0476 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2009:0476 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2009:0476 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2009:0476 |
Timeline
- 2026-10-02 Threatist record created from CVE-2009-1194
- 2026-10-03 Alias added: GHSA-2635-v9v9-3f2h
References
Other 9
- http://github.com/bratsche/pango/commit/4de30e5500eaeb49f4bf0b7a07f718e149a2ed5e
- https://bugzilla.mozilla.org/show_bug.cgi?id=480134
- 54279
- [oss-security] 20090507 [oCERT-2009-001] Pango integer overflow in heap allocation size calculations
- ADV-2009-1269
- https://launchpad.net/bugs/cve/2009-1194
- http://www.mozilla.org/security/announce/2009/mfsa2009-36.html
- oval:org.mitre.oval:def:10137
- ADV-2009-1972
More Pango vulnerabilities
- TI-2011-00020 Heap-based buffer overflow in the pango_ft2_font_render_box_glyph function in… CVSS 2.0HIGH 7.6
Sources
- CVE-2009-1194 · CVE Program
- CVE-2009-1194 · NVD
- FIRST EPSS
- GHSA-2635-v9v9-3f2h · GitHub Advisory Database · CC BY 4.0
- CVE-2009-1194 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences