{"id":"DEBIAN-CVE-2026-115504","details":"CFITSIO through 4.7.0 contains an out-of-bounds write vulnerability in ffgcls2() in getcols.c that trusts attacker-controlled heap descriptor lengths for variable-length string columns. Attackers can supply a crafted FITS file that overflows a fixed 28,800-byte stack buffer and the caller's string array, enabling arbitrary code execution.","modified":"2026-10-24T09:47:26.969399173Z","published":"2026-10-22T20:17:06.313Z","upstream":["CVE-2026-115504"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-115504"}],"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-2026-115504.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-2026-115504.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-2026-115504.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:H/I:H/A:H"}]}