{"id":"DEBIAN-CVE-2026-111124","details":"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.","modified":"2026-10-16T06:00:07.815369798Z","published":"2026-10-15T19:17:25.627Z","upstream":["CVE-2026-111124"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-111124"}],"affected":[{"package":{"name":"cfitsio","ecosystem":"Debian:12","purl":"pkg:deb/debian/cfitsio?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2.0-3","4.3.0-1","4.3.0-2","4.3.1-1","4.3.1-1.1","4.3.1-1.1~exp1","4.4.1-1","4.4.1-2","4.5.0-1","4.5.0-2","4.5.0-3","4.5.0-4","4.5.0-5","4.6.2-1","4.6.2-2","4.6.3-1","4.6.4-1","4.7.0-1","4.7.0-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-111124.json"}},{"package":{"name":"cfitsio","ecosystem":"Debian:13","purl":"pkg:deb/debian/cfitsio?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.2-2","4.6.3-1","4.6.4-1","4.7.0-1","4.7.0-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-111124.json"}},{"package":{"name":"cfitsio","ecosystem":"Debian:14","purl":"pkg:deb/debian/cfitsio?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.2-2","4.6.3-1","4.6.4-1","4.7.0-1","4.7.0-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-111124.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H"}]}