Bug 2459370 (CVE-2026-40336) - CVE-2026-40336 libgphoto2: libgphoto2: Memory leak in ptp_unpack_Sony_DPD() can lead to denial of service
Summary: CVE-2026-40336 libgphoto2: libgphoto2: Memory leak in ptp_unpack_Sony_DPD() c...
Keywords:
Status: NEW
Alias: CVE-2026-40336
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
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Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-18 00:02 UTC by OSIDB Bzimport
Modified: 2026-04-20 13:34 UTC (History)
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Description OSIDB Bzimport 2026-04-18 00:02:05 UTC 
libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have a memory leak in `ptp_unpack_Sony_DPD()` in `camlibs/ptp2/ptp-pack.c` (lines 884–885). When processing a secondary enumeration list (introduced in 2024+ Sony cameras), the function overwrites dpd->FORM.Enum.SupportedValue with a new calloc() without freeing the previous allocation from line 857. The original array and any string values it contains are leaked on every property descriptor parse. Commit 404ff02c75f3cb280196fc260a63c4d26cf1a8f6 fixes the issue.
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