Integer underflow in Freetype before 2.2 allows remote attackers to cause a denial of…
Priority LOW 37CWE-189Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- 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-189 and the CVSS impact.
Summary
Integer underflow in Freetype before 2.2 allows remote attackers to cause a denial of service (crash) via a font file with an odd number of blue values, which causes the underflow when decrementing by 2 in a context that assumes an even number of values.
Why it matters now
EPSS 0.12715 96th 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 1 advisory
- RHSA-2006:0500 Released 2006-07-18 · Red Hat rating Moderatefreetype security update
- Red Hat Desktop version 3 freetype-2.1.4-4.0.rhel3.2, freetype-2.1.4-4.0.rhel3.2.i386, freetype-devel-2.1.4-4.0.rhel3.2 +1
- Red Hat Enterprise Linux AS version 3 freetype-2.1.4-4.0.rhel3.2, freetype-2.1.4-4.0.rhel3.2.i386, freetype-2.1.4-4.0.rhel3.2.ia64 +5
- Red Hat Enterprise Linux AS version 4 freetype-2.1.9-1.rhel4.4, freetype-2.1.9-1.rhel4.4.i386, freetype-2.1.9-1.rhel4.4.ia64 +13
- Red Hat Enterprise Linux Desktop version 4 freetype-2.1.9-1.rhel4.4, freetype-2.1.9-1.rhel4.4.i386, freetype-demos-2.1.9-1.rhel4.4 +5
- Red Hat Enterprise Linux ES version 3 freetype-2.1.4-4.0.rhel3.2, freetype-2.1.4-4.0.rhel3.2.i386, freetype-2.1.4-4.0.rhel3.2.ia64 +3
- Red Hat Enterprise Linux ES version 4 freetype-2.1.9-1.rhel4.4, freetype-2.1.9-1.rhel4.4.i386, freetype-2.1.9-1.rhel4.4.ia64 +9
- Red Hat Enterprise Linux WS version 3 freetype-2.1.4-4.0.rhel3.2, freetype-2.1.4-4.0.rhel3.2.i386, freetype-2.1.4-4.0.rhel3.2.ia64 +3
- Red Hat Enterprise Linux WS version 4 freetype-2.1.9-1.rhel4.4, freetype-2.1.9-1.rhel4.4.i386, freetype-2.1.9-1.rhel4.4.ia64 +9
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Desktop version 3 | Fixed | RHSA-2006:0500 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2006:0500 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2006:0500 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2006:0500 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2006:0500 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2006:0500 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2006:0500 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2006:0500 |
Timeline
- 2026-10-02 Threatist record created from CVE-2006-0747
- 2026-10-03 Alias added: GHSA-pgxv-x8c2-8f48
References
Advisory 10
More Freetype vulnerabilities
- TI-2020-12611 Buffer overflow in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2025-20210 Out-of-bounds write in FreeType KEVCVSS 3.1HIGH 8.1
- TI-2025-16833 FreeType 2.8.1 has a signed integer overflow in cf2_doFlex in cff/cf2intrp.c. CVSS 3.1MEDIUM 6.2
- TI-2012-01032 FreeType before 2.4.9, as used in Mozilla Firefox Mobile before 10.0.4 and other… CVSS 2.0HIGH 10.0
- TI-2011-02548 The LZW decompressor in (1) the BufCompressedFill function in fontfile/decompress.c in… CVSS 2.0HIGH 9.3
- TI-2010-03164 Integer overflow in base/ftstream.c in libXft (aka the X FreeType library) in FreeType… CVSS 2.0HIGH 9.3
Sources
- CVE-2006-0747 · CVE Program
- CVE-2006-0747 · NVD
- FIRST EPSS
- GHSA-pgxv-x8c2-8f48 · GitHub Advisory Database · CC BY 4.0
- CVE-2006-0747 · Red Hat security data · CC BY 4.0
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