CVE-2026-66758
HIGH
MEDIUM
Priority: 0.02
BB Relevance:
41/100
Published: 2026-07-27
Modified: 2026-11-04
First seen: 2026-11-02
Status: active
Attack Surface
Low Complexity
No Auth
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
None
UI:
Required
S:
Unchanged
C:
High
I:
High
A:
High
Description
A flaw was found in the file-fits plugin in GIMP. When processing a FITS image file, the plugin calculates memory allocation sizes using signed 32-bit integers for width and height. If a crafted file sets both values to large values, their product exceeds 2^31 and overflows, resulting in an undersized heap-based buffer allocation. This integer overflow issue results in a heap-based buffer overflow when cfitsio subsequently writes a full row of pixels in the buffer, causing memory corruption, potentially leading to arbitrary code execution or a denial of service.
Weakness Classification (1)
Affected Software (6)
| Vendor | Product | Version |
|---|---|---|
| gimp | gimp | 3.0.8 |
| gimp | gimp | 3.2.4 |
| redhat | enterprise_linux | 6.0 |
| redhat | enterprise_linux | 7.0 |
| redhat | enterprise_linux | 8.0 |
| redhat | enterprise_linux | 9.0 |
References & Advisories (8)
Vendor Advisory
Issue Tracking
Vendor Advisory
Issue Tracking
Exploit
Issue Tracking
Vendor Advisory