Red HatCVE-2026-66757
Red Hat file-sgi plugin: integer overflow
Medium5.5CVE-2026-66757 · Published Jul 27, 2026 · updated Aug 10, 2026
A flaw was found in the file-sgi plugin in GIMP. When processing an RLE-compressed SGI image, the plugin allocates memory for a row table. The image header dimensions (ysize and zsize) are read as 16-bit unsigned integers. If a crafted file sets both dimensions to their maximum value (65535), the multiplication ysize * zsize overflows the standard 32-bit int boundary before being passed to calloc. This integer overflow issue results in undefined behavior, aborting the plugin and causing a denial of service.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| GIMP Product | all versions | No fix yet |
| Red Hat Enterprise Linux 6 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 7 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 8 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 9 Product | all versions | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-190
More Red Hat advisories
All Red Hat| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Jul 28 | Red Hat GStreamer: out-of-bounds read | Low3.3 | No fix yet |
| Jul 27 | Red Hat file-fits plugin: integer overflow | High7.8 | No fix yet |
| Jul 27 | Red Hat file-icns plugin: out-of-bounds read | High7.1 | No fix yet |
| Jul 27 | Red Hat: insufficient authenticity check | High7.5 | No fix yet |
| Jul 27 | Red Hat Enterprise Linux: out-of-bounds read | Medium5.6 | No fix yet |
| Jul 27 | Red Hat OpenShift Virtualization 4: insecure direct object reference | High7.7 | No fix yet |