medium6.1
CVE-2026-111125
CFITSIO through 4.7.0 contains a heap-based out-of-bounds read vulnerability in the HCOMPRESS tile decoder that allows attackers to read past the compressed ti…
Impact
CFITSIO through 4.7.0 contains a heap-based out-of-bounds read vulnerability in the HCOMPRESS tile decoder that allows attackers to read past the compressed tile buffer via input_nnybble in fits_hdecompress.c. Attackers can supply a crafted FITS file with ZCMPTYPE HCOMPRESS_1 declaring oversized tile geometry to crash applications calling fits_read_pix or disclose limited heap memory.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Nasa | Cfitsio | through 4.7.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/HEASARC/cfitsio
- https://github.com/HEASARC/cfitsio/blob/d6d27653740864a0483e74cff23c53e34e1dceee/fits_hdecompress.c#L2575-L2633
- https://github.com/HEASARC/cfitsio/blob/d6d27653740864a0483e74cff23c53e34e1dceee/imcompress.c#L6310-L6316
- https://hackmd.io/@haind-pwn/cfitsio-zdither0-dither-seed-oob-read
- https://www.vulncheck.com/advisories/cfitsio-through-4.7.0-heap-out-of-bounds-read-via-hcompress-input-nnybble