{"id":"DEBIAN-CVE-2026-40339","details":"libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read in `ptp_unpack_Sony_DPD()` in `camlibs/ptp2/ptp-pack.c` (line 842). The function reads the FormFlag byte via `dtoh8o(data, *poffset)` without a prior bounds check. The standard `ptp_unpack_DPD()` at lines 686–687 correctly validates `*offset + sizeof(uint8_t) \u003e dpdlen` before this same read, but the Sony variant omits this check entirely. Commit 09f8a940b1e418b5693f5c11e3016a1ad2cea62d fixes the issue.","modified":"2026-09-14T17:03:32.838919750Z","published":"2026-04-18T00:16:37.947Z","upstream":["CVE-2026-40339"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-40339"}],"affected":[{"package":{"name":"libgphoto2","ecosystem":"Debian:12","purl":"pkg:deb/debian/libgphoto2?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.30-1","2.5.31-1","2.5.31-2","2.5.31-2.1","2.5.31-2.1~exp1","2.5.31-3","2.5.31-4","2.5.32-1","2.5.33-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-40339.json"}},{"package":{"name":"libgphoto2","ecosystem":"Debian:13","purl":"pkg:deb/debian/libgphoto2?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.31-4","2.5.32-1","2.5.33-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-40339.json"}},{"package":{"name":"libgphoto2","ecosystem":"Debian:14","purl":"pkg:deb/debian/libgphoto2?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.31-4","2.5.32-1","2.5.33-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-40339.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L"}]}