libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, two functions in camlibs/ptp2/ptp-pack.c accept a data pointer but no length parameter, performing unbounded reads. Their callers in ptp_unpack_EOS_events() have xsize available but never pass it, leaving both functions unable to validate reads against the actual buffer boundary. Commit 1817ecead20c2aafa7549dac9619fe38f47b2f53 patches the issue.
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Affected Vendors & Products
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History
Fri, 17 Apr 2026 23:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, two functions in camlibs/ptp2/ptp-pack.c accept a data pointer but no length parameter, performing unbounded reads. Their callers in ptp_unpack_EOS_events() have xsize available but never pass it, leaving both functions unable to validate reads against the actual buffer boundary. Commit 1817ecead20c2aafa7549dac9619fe38f47b2f53 patches the issue. | |
| Title | libgphoto2 has OOB read in ptp_unpack_EOS_ImageFormat() and ptp_unpack_EOS_CustomFuncEx() due to missing length parameter in ptp-pack.c | |
| Weaknesses | CWE-125 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-04-17T23:11:11.073Z
Reserved: 2026-04-10T22:50:01.357Z
Link: CVE-2026-40333
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Status : Received
Published: 2026-04-18T00:16:37.120
Modified: 2026-04-18T00:16:37.120
Link: CVE-2026-40333
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OpenCVE Enrichment
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