UBUNTU-CVE-2026-84270

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Source
https://ubuntu.com/security/CVE-2026-84270
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84270.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-84270
Upstream
Published
2026-09-01T16:17:00Z
Modified
2026-09-16T14:03:44Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in the MTP backend in gvfs. When reading a file from a mounted MTP device, do_read() in gvfsbackendmtp.c trusts the data length returned by the device without limiting it to the original size requested by the client. If a malicious MTP device responds with more bytes than requested, this unrestricted length is passed directly to memcpy(). This causes the operation to read memory outside the intended boundaries. This allows an attacker who plugs in a malicious MTP device to cause a segmentation fault when a file is read and crash the gvfsd-mtp process, resulting in a denial of service.

References

Affected packages

Ubuntu:16.04:LTS
gvfs

Package

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

Affected ranges

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

Affected versions

1.*
1.24.2-0ubuntu4
1.24.2-0ubuntu5
1.24.2-0ubuntu6
1.26.2-1ubuntu1
1.27.3-1ubuntu1
1.27.4-1ubuntu1
1.27.90-1ubuntu1
1.27.92-1ubuntu1
1.28.1-1ubuntu1
1.28.2-1ubuntu1~16.04.1
1.28.2-1ubuntu1~16.04.2
1.28.2-1ubuntu1~16.04.3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "gvfs",
            "binary_version":  "1.28.2-1ubuntu1~16.04.3"
        },
        {
            "binary_name":  "gvfs-backends",
            "binary_version":  "1.28.2-1ubuntu1~16.04.3"
        },
        {
            "binary_name":  "gvfs-bin",
            "binary_version":  "1.28.2-1ubuntu1~16.04.3"
        },
        {
            "binary_name":  "gvfs-common",
            "binary_version":  "1.28.2-1ubuntu1~16.04.3"
        },
        {
            "binary_name":  "gvfs-daemons",
            "binary_version":  "1.28.2-1ubuntu1~16.04.3"
        },
        {
            "binary_name":  "gvfs-fuse",
            "binary_version":  "1.28.2-1ubuntu1~16.04.3"
        },
        {
            "binary_name":  "gvfs-libs",
            "binary_version":  "1.28.2-1ubuntu1~16.04.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84270.json"
Ubuntu:18.04:LTS
gvfs

Package

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

Affected ranges

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

Affected versions

1.*
1.34.1-1ubuntu1
1.34.1-1ubuntu3
1.34.1-1ubuntu4
1.34.1-2ubuntu2
1.35.91-1ubuntu1
1.35.91-1ubuntu2
1.36.0-1ubuntu1
1.36.1-0ubuntu1
1.36.1-0ubuntu1.1
1.36.1-0ubuntu1.2
1.36.1-0ubuntu1.3
1.36.1-0ubuntu1.3.2
1.36.1-0ubuntu1.3.3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "gvfs",
            "binary_version":  "1.36.1-0ubuntu1.3.3"
        },
        {
            "binary_name":  "gvfs-backends",
            "binary_version":  "1.36.1-0ubuntu1.3.3"
        },
        {
            "binary_name":  "gvfs-bin",
            "binary_version":  "1.36.1-0ubuntu1.3.3"
        },
        {
            "binary_name":  "gvfs-common",
            "binary_version":  "1.36.1-0ubuntu1.3.3"
        },
        {
            "binary_name":  "gvfs-daemons",
            "binary_version":  "1.36.1-0ubuntu1.3.3"
        },
        {
            "binary_name":  "gvfs-fuse",
            "binary_version":  "1.36.1-0ubuntu1.3.3"
        },
        {
            "binary_name":  "gvfs-libs",
            "binary_version":  "1.36.1-0ubuntu1.3.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84270.json"
Ubuntu:20.04:LTS
gvfs

Package

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

Affected ranges

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

Affected versions

1.*
1.42.1-1ubuntu1
1.42.2-1ubuntu3
1.43.90-1ubuntu3
1.43.92-1ubuntu1
1.44.0-1ubuntu1
1.44.1-1ubuntu1
1.44.1-1ubuntu1.1
1.44.1-1ubuntu1.2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "gvfs",
            "binary_version":  "1.44.1-1ubuntu1.2"
        },
        {
            "binary_name":  "gvfs-backends",
            "binary_version":  "1.44.1-1ubuntu1.2"
        },
        {
            "binary_name":  "gvfs-bin",
            "binary_version":  "1.44.1-1ubuntu1.2"
        },
        {
            "binary_name":  "gvfs-common",
            "binary_version":  "1.44.1-1ubuntu1.2"
        },
        {
            "binary_name":  "gvfs-daemons",
            "binary_version":  "1.44.1-1ubuntu1.2"
        },
        {
            "binary_name":  "gvfs-fuse",
            "binary_version":  "1.44.1-1ubuntu1.2"
        },
        {
            "binary_name":  "gvfs-libs",
            "binary_version":  "1.44.1-1ubuntu1.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84270.json"
Ubuntu:22.04:LTS
gvfs

Package

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

Affected ranges

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

Affected versions

1.*
1.47.91-1ubuntu1
1.48.1-2ubuntu2
1.48.1-2ubuntu3
1.48.1-2ubuntu5
1.48.1-3
1.48.1-4
1.48.2-0ubuntu1
1.48.2-0ubuntu1.1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "gvfs",
            "binary_version":  "1.48.2-0ubuntu1.1"
        },
        {
            "binary_name":  "gvfs-backends",
            "binary_version":  "1.48.2-0ubuntu1.1"
        },
        {
            "binary_name":  "gvfs-common",
            "binary_version":  "1.48.2-0ubuntu1.1"
        },
        {
            "binary_name":  "gvfs-daemons",
            "binary_version":  "1.48.2-0ubuntu1.1"
        },
        {
            "binary_name":  "gvfs-fuse",
            "binary_version":  "1.48.2-0ubuntu1.1"
        },
        {
            "binary_name":  "gvfs-libs",
            "binary_version":  "1.48.2-0ubuntu1.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84270.json"
Ubuntu:24.04:LTS
gvfs

Package

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

Affected ranges

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

Affected versions

1.*
1.52.0-1
1.52.1-1build1
1.52.2-1
1.53.90-2
1.54.0-1build1
1.54.0-1build2
1.54.0-1build3
1.54.0-1ubuntu2
1.54.4-0ubuntu1~24.04.1
1.54.4-0ubuntu1~24.04.2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "gvfs",
            "binary_version":  "1.54.4-0ubuntu1~24.04.2"
        },
        {
            "binary_name":  "gvfs-backends",
            "binary_version":  "1.54.4-0ubuntu1~24.04.2"
        },
        {
            "binary_name":  "gvfs-common",
            "binary_version":  "1.54.4-0ubuntu1~24.04.2"
        },
        {
            "binary_name":  "gvfs-daemons",
            "binary_version":  "1.54.4-0ubuntu1~24.04.2"
        },
        {
            "binary_name":  "gvfs-fuse",
            "binary_version":  "1.54.4-0ubuntu1~24.04.2"
        },
        {
            "binary_name":  "gvfs-libs",
            "binary_version":  "1.54.4-0ubuntu1~24.04.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84270.json"
Ubuntu:26.04:LTS
gvfs

Package

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

Affected ranges

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

Affected versions

1.*
1.57.2-2ubuntu5
1.57.2-2ubuntu6
1.58.0-1ubuntu1
1.58.0-2
1.59.1-1
1.59.90-3
1.60.0-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "gvfs",
            "binary_version":  "1.60.0-1"
        },
        {
            "binary_name":  "gvfs-backends",
            "binary_version":  "1.60.0-1"
        },
        {
            "binary_name":  "gvfs-common",
            "binary_version":  "1.60.0-1"
        },
        {
            "binary_name":  "gvfs-daemons",
            "binary_version":  "1.60.0-1"
        },
        {
            "binary_name":  "gvfs-fuse",
            "binary_version":  "1.60.0-1"
        },
        {
            "binary_name":  "gvfs-libs",
            "binary_version":  "1.60.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84270.json"