UBUNTU-CVE-2026-73584

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Source
https://ubuntu.com/security/CVE-2026-73584
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73584.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-73584
Upstream
  • CVE-2026-73584
Published
2026-08-13T13:19:00Z
Modified
2026-08-19T11:11:14Z
Severity
  • 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in sblim-sfcb. A local, low-privileged attacker can exploit a race condition during privileged instance migration by manipulating a temporary file in the /tmp directory. By repeatedly recreating a symbolic link, the attacker can redirect privileged output to an arbitrary file. This can lead to privileged file corruption or a denial of service (DoS) on the system.

References

Affected packages

Ubuntu:16.04:LTS
sblim-sfcb

Package

Name
sblim-sfcb
Purl
pkg:deb/ubuntu/sblim-sfcb?arch=source&distro=xenial

Affected ranges

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

Affected versions

1.*
1.4.8-0ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "sfcb",
            "binary_version": "1.4.8-0ubuntu2"
        },
        {
            "binary_name": "sfcb-test",
            "binary_version": "1.4.8-0ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73584.json"
Ubuntu:18.04:LTS
sblim-sfcb

Package

Name
sblim-sfcb
Purl
pkg:deb/ubuntu/sblim-sfcb?arch=source&distro=bionic

Affected ranges

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

Affected versions

1.*
1.4.9-0ubuntu1
1.4.9-0ubuntu3
1.4.9-0ubuntu5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "sfcb",
            "binary_version": "1.4.9-0ubuntu5"
        },
        {
            "binary_name": "sfcb-test",
            "binary_version": "1.4.9-0ubuntu5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73584.json"
Ubuntu:20.04:LTS
sblim-sfcb

Package

Name
sblim-sfcb
Purl
pkg:deb/ubuntu/sblim-sfcb?arch=source&distro=focal

Affected ranges

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

Affected versions

1.*
1.4.9-0ubuntu5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "sfcb",
            "binary_version": "1.4.9-0ubuntu5"
        },
        {
            "binary_name": "sfcb-test",
            "binary_version": "1.4.9-0ubuntu5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73584.json"
Ubuntu:22.04:LTS
sblim-sfcb

Package

Name
sblim-sfcb
Purl
pkg:deb/ubuntu/sblim-sfcb?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.4.9-0ubuntu5
1.4.9-0ubuntu7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "sfcb",
            "binary_version": "1.4.9-0ubuntu7"
        },
        {
            "binary_name": "sfcb-test",
            "binary_version": "1.4.9-0ubuntu7"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73584.json"
Ubuntu:24.04:LTS
sblim-sfcb

Package

Name
sblim-sfcb
Purl
pkg:deb/ubuntu/sblim-sfcb?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.4.9-0ubuntu7
1.4.9-0ubuntu9
1.4.9-0ubuntu10

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "sfcb",
            "binary_version": "1.4.9-0ubuntu10"
        },
        {
            "binary_name": "sfcb-test",
            "binary_version": "1.4.9-0ubuntu10"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73584.json"
Ubuntu:26.04:LTS
sblim-sfcb

Package

Name
sblim-sfcb
Purl
pkg:deb/ubuntu/sblim-sfcb?arch=source&distro=resolute

Affected ranges

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

Affected versions

1.*
1.4.9-0ubuntu10

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "sfcb",
            "binary_version": "1.4.9-0ubuntu10"
        },
        {
            "binary_name": "sfcb-test",
            "binary_version": "1.4.9-0ubuntu10"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73584.json"