UBUNTU-CVE-2026-40339

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Source
https://ubuntu.com/security/CVE-2026-40339
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40339.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-40339
Upstream
Downstream
Related
Published
2026-04-18T00:16:00Z
Modified
2026-07-22T20:46:44Z
Severity
  • 5.2 (Medium) CVSS_V3 - CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:14.04:LTS
libgphoto2

Package

Name
libgphoto2
Purl
pkg:deb/ubuntu/libgphoto2?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.5.2-0ubuntu5
2.5.2-0ubuntu6
2.5.3.1-0ubuntu1
2.5.3.1-1ubuntu2
2.5.3.1-1ubuntu2.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libgphoto2-6",
            "binary_version": "2.5.3.1-1ubuntu2.2"
        },
        {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.3.1-1ubuntu2.2"
        },
        {
            "binary_name": "libgphoto2-port10",
            "binary_version": "2.5.3.1-1ubuntu2.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40339.json"
Ubuntu:16.04:LTS
libgphoto2

Package

Name
libgphoto2
Purl
pkg:deb/ubuntu/libgphoto2?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.5.8-1
2.5.8-2
2.5.8-3
2.5.9-2
2.5.9-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libgphoto2-6",
            "binary_version": "2.5.9-3"
        },
        {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.9-3"
        },
        {
            "binary_name": "libgphoto2-port12",
            "binary_version": "2.5.9-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40339.json"
Ubuntu:18.04:LTS
libgphoto2

Package

Name
libgphoto2
Purl
pkg:deb/ubuntu/libgphoto2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.5.14-1
2.5.16-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libgphoto2-6",
            "binary_version": "2.5.16-2"
        },
        {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.16-2"
        },
        {
            "binary_name": "libgphoto2-port12",
            "binary_version": "2.5.16-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40339.json"
Ubuntu:20.04:LTS
libgphoto2

Package

Name
libgphoto2
Purl
pkg:deb/ubuntu/libgphoto2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.5.23-2
2.5.24-1
2.5.25-0ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libgphoto2-6",
            "binary_version": "2.5.25-0ubuntu0.1"
        },
        {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.25-0ubuntu0.1"
        },
        {
            "binary_name": "libgphoto2-port12",
            "binary_version": "2.5.25-0ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40339.json"
Ubuntu:22.04:LTS
libgphoto2

Package

Name
libgphoto2
Purl
pkg:deb/ubuntu/libgphoto2?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.5.27-1ubuntu0.1

Affected versions

2.*
2.5.27-1
2.5.27-1build1
2.5.27-1build2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libgphoto2-6",
            "binary_version": "2.5.27-1ubuntu0.1"
        },
        {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.27-1ubuntu0.1"
        },
        {
            "binary_name": "libgphoto2-port12",
            "binary_version": "2.5.27-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40339.json"
Ubuntu:24.04:LTS
libgphoto2

Package

Name
libgphoto2
Purl
pkg:deb/ubuntu/libgphoto2?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.5.31-2.1ubuntu1.1

Affected versions

2.*
2.5.30-1
2.5.31-1
2.5.31-2
2.5.31-2.1build1
2.5.31-2.1build2
2.5.31-2.1ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libgphoto2-6t64",
            "binary_version": "2.5.31-2.1ubuntu1.1"
        },
        {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.31-2.1ubuntu1.1"
        },
        {
            "binary_name": "libgphoto2-port12t64",
            "binary_version": "2.5.31-2.1ubuntu1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40339.json"
Ubuntu:25.10
libgphoto2

Package

Name
libgphoto2
Purl
pkg:deb/ubuntu/libgphoto2?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.5.31-4
2.5.31-4build1
2.5.31-4ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libgphoto2-6t64",
            "binary_version": "2.5.31-4ubuntu1"
        },
        {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.31-4ubuntu1"
        },
        {
            "binary_name": "libgphoto2-port12t64",
            "binary_version": "2.5.31-4ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40339.json"
Ubuntu:26.04:LTS
libgphoto2

Package

Name
libgphoto2
Purl
pkg:deb/ubuntu/libgphoto2?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.5.33-1ubuntu1.1

Affected versions

2.*
2.5.31-4build1
2.5.32-1
2.5.33-1
2.5.33-1ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libgphoto2-6t64",
            "binary_version": "2.5.33-1ubuntu1.1"
        },
        {
            "binary_name": "libgphoto2-l10n",
            "binary_version": "2.5.33-1ubuntu1.1"
        },
        {
            "binary_name": "libgphoto2-port12t64",
            "binary_version": "2.5.33-1ubuntu1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40339.json"