Possible integer overflow on 32-bit systems when reading GIF images
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.
Summary
libvips is a fast image processing library with low memory needs. On 32-bit systems in versions before and including 8.18.0, the `gifload` operation could incorrectly determine dimensions leading to an integer overflow. This has been patched in version 8.18.1.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-33328
References
More Libvips vulnerabilities
- TI-2026-02835 libvips extract.c vips_extract_area_build integer overflow CVSS 4.0MEDIUM 4.8
- TI-2026-02834 libvips extract.c vips_extract_band_build out-of-bounds CVSS 4.0MEDIUM 4.8
- TI-2026-02833 libvips unpremultiply.c vips_unpremultiply_build out-of-bounds CVSS 4.0MEDIUM 4.8
- TI-2026-02832 libvips bandrank.c vips_bandrank_build heap-based overflow CVSS 4.0MEDIUM 4.8
- TI-2026-02719 libvips csvload.c vips_foreign_load_csv_build heap-based overflow CVSS 4.0MEDIUM 4.8
- TI-2026-02718 libvips matrixload.c vips_foreign_load_matrix_header null pointer dereference CVSS 4.0MEDIUM 4.8
Sources
- CVE-2026-33328 · CVE Program
- CVE-2026-33328 · NVD
- FIRST EPSS
- CVE-2026-33328 · Red Hat security data · CC BY 4.0
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