CVE-2026-40334

Publication date 18 April 2026

Last updated 6 August 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

3.5 · Low

Score breakdown

Description

libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, a missing null terminator exists in ptp_unpack_Canon_FE() in camlibs/ptp2/ptp-pack.c (line 1377). The function copies a filename into a 13-byte buffer using strncpy without explicitly null-terminating the result. If the source data is exactly 13 bytes with no null terminator, the buffer is left unterminated, leading to out-of-bounds reads in any subsequent string operation. Commit 259fc7d3bfe534ce4b114c464f55b448670ab873 patches the issue.

Status

Package Ubuntu Release Status
libgphoto2 26.04 LTS resolute
Fixed 2.5.33-1ubuntu1.1
25.10 questing Ignored end of life, was needs-triage
24.04 LTS noble
Fixed 2.5.31-2.1ubuntu1.1
22.04 LTS jammy
Fixed 2.5.27-1ubuntu0.1
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 3.5 · Low

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

References

Related Ubuntu Security Notices (USN)

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

Other references

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