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OpenAdvisories
Low · 2.4 CVE-2026-40336 EUVD-2026-23587

libgphoto2 has memory leak in ptp_unpack_Sony_DPD() secondary enumeration list in ptp-pack.c

Published Apr 17, 2026 · Updated Apr 20, 2026 · Assigned by GitHub_M

Description

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.

Affected products

VendorProductAffectedFixed
gphoto libgphoto2 <= 2.5.33 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 libgphoto2 2.5.34-1 —
Debian 13 libgphoto2 No fix yet —
Debian 12 libgphoto2 No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.04 LTS libgphoto2 2.5.33-1ubuntu1.1 USN-8586-1
Ubuntu 25.10 libgphoto2 No fix yet —
Ubuntu 24.04 LTS libgphoto2 2.5.31-2.1ubuntu1.1 USN-8586-1
Ubuntu 22.04 LTS libgphoto2 2.5.27-1ubuntu0.1 USN-8586-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed libgphoto2 2.5.34-1.1 openSUSE-SU-2026:10916-1

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 libgphoto2 No fix yet —

Advisories 2

References