UBUNTU-CVE-2026-84268

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Source
https://ubuntu.com/security/CVE-2026-84268
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-84268.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-84268
Upstream
Published
2026-09-01T16:17:00Z
Modified
2026-09-16T14:03:44Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in the SFTP backend in gvfs. When mounting a share and reading a file, a malicious SFTP server can cause read_reply() to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the allocated buffer size, causing the operation to write past the intended boundaries. This issue allows a malicious server to corrupt adjacent heap memory in the gvfsd-sftp process, resulting in a denial of service as the process aborts upon detecting the heap corruption or potentially allowing arbitrary code execution.

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-2026-84268.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-2026-84268.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-2026-84268.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-2026-84268.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-2026-84268.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-2026-84268.json"