Bug 2553694 (CVE-2026-111125) - CVE-2026-111125 cfitsio: cfitsio: Denial of Service via heap-based out-of-bounds read in HCOMPRESS tile decoder
Summary: CVE-2026-111125 cfitsio: cfitsio: Denial of Service via heap-based out-of-bou...
Keywords:
Status: NEW
Alias: CVE-2026-111125
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2554112 2554114 2554115 2554116 2554119
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-15 19:05 UTC by OSIDB Bzimport
Modified: 2026-10-16 13:46 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-10-15 19:05:25 UTC 
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.
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