CVE-2026-40338

Publication date 18 April 2026

Last updated 16 July 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.2 · Medium

Score breakdown

Description

libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read in the PTP_DPFF_Enumeration case of `ptp_unpack_Sony_DPD()` in `camlibs/ptp2/ptp-pack.c` (line 856). The function reads a 2-byte enumeration count N via `dtoh16o(data, *poffset)` without verifying that 2 bytes remain in the buffer. The standard `ptp_unpack_DPD()` at line 704 has this exact check, confirming the Sony variant omitted it by oversight. Commit 3b9f9696be76ae51dca983d9dd8ce586a2561845 fixes the issue.

Status

Package Ubuntu Release Status
libgphoto2 26.04 LTS resolute
Needs evaluation
25.10 questing Ignored end of life, was needs-triage
24.04 LTS noble
Needs evaluation
22.04 LTS jammy
Needs evaluation
20.04 LTS focal
Needs evaluation
18.04 LTS bionic
Needs evaluation
16.04 LTS xenial
Needs evaluation
14.04 LTS trusty
Needs evaluation

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
libgphoto2

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.2 · Medium

Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L

References

Related Ubuntu Security Notices (USN)

    • USN-8586-1
    • libgphoto2 vulnerabilities
    • 22 July 2026

Other references

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