{"id":"DEBIAN-CVE-2026-78465","details":"A flaw was found in the file-pcx plugin in GIMP, affecting 32-bit builds only. When processing a PCX image file, the plugin calculates memory allocation sizes based on the image dimensions and the number of color planes. If a crafted file sets the number of planes to 4 alongside sufficiently large dimensions, the calculation exceeds the 32-bit integer limit and overflows, resulting in an undersized heap-based buffer allocation. This integer overflow issue results in a heap-based buffer overflow when the plugin subsequently writes image data into the undersized buffer, causing memory corruption, potentially leading to arbitrary code execution or a denial of service.","modified":"2026-09-20T20:00:07.182942888Z","published":"2026-08-24T17:18:20.810Z","upstream":["CVE-2026-78465"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-78465"}],"affected":[{"package":{"name":"gimp","ecosystem":"Debian:12","purl":"pkg:deb/debian/gimp?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.34-1","2.10.34-1+deb12u1","2.10.34-1+deb12u10","2.10.34-1+deb12u2","2.10.34-1+deb12u3","2.10.34-1+deb12u4","2.10.34-1+deb12u5","2.10.34-1+deb12u6","2.10.34-1+deb12u7","2.10.34-1+deb12u8","2.10.34-1+deb12u9","2.10.36-1","2.10.36-2","2.10.36-3","2.10.38-1","2.10.38-2","2.99.10-1","2.99.12-1","2.99.12-2","2.99.14-1","2.99.14-2","2.99.16-1","2.99.16-2","2.99.18-1","3.0.0-1","3.0.0-2","3.0.0~RC1-1","3.0.0~RC1-3","3.0.0~RC1-4","3.0.0~RC2-1","3.0.0~RC3-1","3.0.2-1","3.0.2-2","3.0.2-3","3.0.2-3.1","3.0.4-1","3.0.4-2","3.0.4-3","3.0.4-4","3.0.4-5","3.0.4-6","3.0.4-6.1","3.0.4-6.2","3.0.6-1","3.2.0-1","3.2.0~RC2-1","3.2.0~RC2-2","3.2.0~RC2-3","3.2.0~RC2-3.1","3.2.0~RC2-3.2","3.2.0~RC2-3.3","3.2.0~RC3-1","3.2.2-1","3.2.4-1","3.2.4-2","3.2.4-3","3.2.6-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-78465.json"}},{"package":{"name":"gimp","ecosystem":"Debian:13","purl":"pkg:deb/debian/gimp?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.4-3+deb13u11"}]}],"versions":["3.0.4-3","3.0.4-3+deb13u1","3.0.4-3+deb13u10","3.0.4-3+deb13u2","3.0.4-3+deb13u3","3.0.4-3+deb13u4","3.0.4-3+deb13u5","3.0.4-3+deb13u6","3.0.4-3+deb13u7","3.0.4-3+deb13u8","3.0.4-3+deb13u9"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-78465.json"}},{"package":{"name":"gimp","ecosystem":"Debian:14","purl":"pkg:deb/debian/gimp?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.6-1"}]}],"versions":["3.0.4-3","3.0.4-4","3.0.4-5","3.0.4-6","3.0.4-6.1","3.0.4-6.2","3.0.6-1","3.2.0-1","3.2.0~RC2-1","3.2.0~RC2-2","3.2.0~RC2-3","3.2.0~RC2-3.1","3.2.0~RC2-3.2","3.2.0~RC2-3.3","3.2.0~RC3-1","3.2.2-1","3.2.4-1","3.2.4-2","3.2.4-3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-78465.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}