Out-of-bounds Read Affecting libgphoto2-devel package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.01% (1st percentile)

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  • Snyk IDSNYK-RHEL8-LIBGPHOTO2DEVEL-16117756
  • published21 Apr 2026
  • disclosed17 Apr 2026

Introduced: 17 Apr 2026

NewCVE-2026-40339  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 libgphoto2-devel.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libgphoto2-devel package and not the libgphoto2-devel package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read in ptp_unpack_Sony_DPD() in camlibs/ptp2/ptp-pack.c (line 842). The function reads the FormFlag byte via dtoh8o(data, *poffset) without a prior bounds check. The standard ptp_unpack_DPD() at lines 686–687 correctly validates *offset + sizeof(uint8_t) > dpdlen before this same read, but the Sony variant omits this check entirely. Commit 09f8a940b1e418b5693f5c11e3016a1ad2cea62d fixes the issue.

CVSS Base Scores

version 3.1