CFITSIO through 4.7.0 contains a heap-based out-of-bounds read vulnerability in the imcompress.c unquantize helpers that allows attackers to read memory before the fits_rand_value table via a zero or negative ZDITHER0 seed. Attackers can supply a crafted FITS file with a SUBTRACTIVE_DITHER_1 compressed image, read through fits_open_file() and fits_read_pix(), to cause crashes or leak heap contents in decoded pixels.
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Affected Vendors & Products
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Fixes
Solution
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Workaround
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References
History
Thu, 15 Oct 2026 19:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | CFITSIO through 4.7.0 contains a heap-based out-of-bounds read vulnerability in the imcompress.c unquantize helpers that allows attackers to read memory before the fits_rand_value table via a zero or negative ZDITHER0 seed. Attackers can supply a crafted FITS file with a SUBTRACTIVE_DITHER_1 compressed image, read through fits_open_file() and fits_read_pix(), to cause crashes or leak heap contents in decoded pixels. | |
| Title | CFITSIO through 4.7.0 Heap Out-of-Bounds Read via Negative ZDITHER0 Seed | |
| Weaknesses | CWE-125 | |
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cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-15T18:57:21.328Z
Reserved: 2026-10-15T17:03:50.803Z
Link: CVE-2026-111124
Vulnrichment
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NVD
Status : Received
Published: 2026-10-15T19:17:25.627
Modified: 2026-10-15T19:17:25.627
Link: CVE-2026-111124
Redhat
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OpenCVE Enrichment
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Weaknesses