libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read vulnerability in `ptp_unpack_OI()` in `camlibs/ptp2/ptp-pack.c` (lines 530–563). The function validates `len < PTP_oi_SequenceNumber` (i.e., len < 48) but subsequently accesses offsets 48–56, up to 9 bytes beyond the validated boundary, via the Samsung Galaxy 64-bit objectsize detection heuristic. Commit 7c7f515bc88c3d0c4098ac965d313518e0ccbe33 fixes the issue.
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Sat, 18 Apr 2026 00:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read vulnerability in `ptp_unpack_OI()` in `camlibs/ptp2/ptp-pack.c` (lines 530–563). The function validates `len < PTP_oi_SequenceNumber` (i.e., len < 48) but subsequently accesses offsets 48–56, up to 9 bytes beyond the validated boundary, via the Samsung Galaxy 64-bit objectsize detection heuristic. Commit 7c7f515bc88c3d0c4098ac965d313518e0ccbe33 fixes the issue. | |
| Title | libgphoto2 has OOB read in ptp_unpack_OI() in ptp-pack.c via malicious PTP ObjectInfo response | |
| Weaknesses | CWE-125 | |
| References |
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-04-17T23:45:17.467Z
Reserved: 2026-04-10T22:50:01.358Z
Link: CVE-2026-40340
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Status : Received
Published: 2026-04-18T00:16:38.087
Modified: 2026-04-18T00:16:38.087
Link: CVE-2026-40340
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