{"id":"DEBIAN-CVE-2026-40334","details":"libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, a missing null terminator exists in ptp_unpack_Canon_FE() in camlibs/ptp2/ptp-pack.c (line 1377). The function copies a filename into a 13-byte buffer using strncpy without explicitly null-terminating the result. If the source data is exactly 13 bytes with no null terminator, the buffer is left unterminated, leading to out-of-bounds reads in any subsequent string operation. Commit 259fc7d3bfe534ce4b114c464f55b448670ab873 patches the issue.","modified":"2026-09-14T17:03:32.826177369Z","published":"2026-04-18T00:16:37.257Z","upstream":["CVE-2026-40334"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-40334"}],"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-2026-40334.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-2026-40334.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-2026-40334.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:L/I:N/A:L"}]}