{"id":"UBUNTU-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":"2026-09-02T19:36:47.282484260Z","published":"2026-08-24T17:18:00Z","upstream":["CVE-2026-78465"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-78465"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-78465"},{"type":"REPORT","url":"https://gitlab.gnome.org/GNOME/gimp/-/work_items/16578"}],"affected":[{"package":{"name":"gimp","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/gimp?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.8.14-1ubuntu2","2.8.14-1.2ubuntu1","2.8.16-1ubuntu1","2.8.16-1ubuntu1.1","2.8.16-1ubuntu1.1+esm1","2.8.16-1ubuntu1.1+esm2","2.8.16-1ubuntu1.1+esm3"],"ecosystem_specific":{"binaries":[{"binary_version":"2.8.16-1ubuntu1.1+esm3","binary_name":"gimp"},{"binary_version":"2.8.16-1ubuntu1.1+esm3","binary_name":"gimp-data"},{"binary_name":"libgimp2.0","binary_version":"2.8.16-1ubuntu1.1+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78465.json"}},{"package":{"name":"gimp","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/gimp?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.8.20-1","2.8.20-1.1","2.8.20-2","2.8.22-1","2.8.22-1ubuntu0.1~esm1","2.8.22-1ubuntu0.1~esm2","2.8.22-1ubuntu0.1~esm3"],"ecosystem_specific":{"binaries":[{"binary_version":"2.8.22-1ubuntu0.1~esm3","binary_name":"gimp"},{"binary_version":"2.8.22-1ubuntu0.1~esm3","binary_name":"gimp-data"},{"binary_name":"libgimp2.0","binary_version":"2.8.22-1ubuntu0.1~esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78465.json"}},{"package":{"name":"gimp","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/gimp?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.8-2","2.10.14-2","2.10.14-2build1","2.10.14-2ubuntu1","2.10.14-3","2.10.18-1","2.10.18-1ubuntu0.1","2.10.18-1ubuntu0.1+esm1","2.10.18-1ubuntu0.1+esm2","2.10.18-1ubuntu0.1+esm3"],"ecosystem_specific":{"binaries":[{"binary_version":"2.10.18-1ubuntu0.1+esm3","binary_name":"gimp"},{"binary_name":"gimp-data","binary_version":"2.10.18-1ubuntu0.1+esm3"},{"binary_name":"libgimp2.0","binary_version":"2.10.18-1ubuntu0.1+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78465.json"}},{"package":{"name":"gimp","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/gimp?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.24-2","2.10.28-1","2.10.30-1","2.10.30-1build1","2.10.30-1ubuntu0.1","2.10.30-1ubuntu0.1+esm1","2.10.30-1ubuntu0.1+esm2","2.10.30-1ubuntu0.1+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"gimp","binary_version":"2.10.30-1ubuntu0.1+esm3"},{"binary_name":"gimp-data","binary_version":"2.10.30-1ubuntu0.1+esm3"},{"binary_version":"2.10.30-1ubuntu0.1+esm3","binary_name":"libgimp2.0"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78465.json"}},{"package":{"name":"gimp","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/gimp?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.10.34-1","2.10.36-1","2.10.36-2","2.10.36-3build2","2.10.36-3build3","2.10.36-3ubuntu0.24.04.1","2.10.36-3ubuntu0.24.04.1+esm1","2.10.36-3ubuntu0.24.04.1+esm2","2.10.36-3ubuntu0.24.04.1+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"gimp","binary_version":"2.10.36-3ubuntu0.24.04.1+esm3"},{"binary_version":"2.10.36-3ubuntu0.24.04.1+esm3","binary_name":"gimp-data"},{"binary_name":"libgimp2.0t64","binary_version":"2.10.36-3ubuntu0.24.04.1+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78465.json"}},{"package":{"name":"gimp","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/gimp?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.4-6.1","3.0.4-6.2","3.0.6-1","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","3.2.0-1","3.2.2-1","3.2.2-1ubuntu0.26.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"gimp","binary_version":"3.2.2-1ubuntu0.26.04.1"},{"binary_name":"gimp-data","binary_version":"3.2.2-1ubuntu0.26.04.1"},{"binary_name":"gir1.2-gimp-3.0","binary_version":"3.2.2-1ubuntu0.26.04.1"},{"binary_name":"libgimp-3.0-0","binary_version":"3.2.2-1ubuntu0.26.04.1"},{"binary_name":"libgimp-3.0-bin","binary_version":"3.2.2-1ubuntu0.26.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-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"},{"type":"Ubuntu","score":"medium"}]}