UBUNTU-CVE-2026-25061

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Source
https://ubuntu.com/security/CVE-2026-25061
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25061.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-25061
Upstream
Published
2026-01-29T22:15:00Z
Modified
2026-02-28T06:11:56.645481Z
Severity
  • 5.5 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P CVSS Calculator
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

tcpflow is a TCP/IP packet demultiplexer. In versions up to and including 1.61, wifipcap parses 802.11 management frame elements and performs a length check on the wrong field when handling the TIM element. A crafted frame with a large TIM length can cause a 1-byte out-of-bounds write past tim.bitmap[251]. The overflow is small and DoS is the likely impact; code execution is potential, but still up in the air. The affected structure is stack-allocated in handle_beacon() and related handlers. As of time of publication, no known patches are available.

References

Affected packages

Ubuntu:16.04:LTS
tcpflow

Package

Name
tcpflow
Purl
pkg:deb/ubuntu/tcpflow@1.4.5+repack1-1ubuntu0.1?arch=source&distro=xenial

Affected ranges

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

Affected versions

1.*
1.4.4+repack1-3
1.4.5+repack1-1
1.4.5+repack1-1ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.4.5+repack1-1ubuntu0.1",
            "binary_name": "tcpflow"
        },
        {
            "binary_version": "1.4.5+repack1-1ubuntu0.1",
            "binary_name": "tcpflow-nox"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25061.json"
Ubuntu:18.04:LTS
tcpflow

Package

Name
tcpflow
Purl
pkg:deb/ubuntu/tcpflow@1.4.5+repack1-4ubuntu0.18.04.1?arch=source&distro=bionic

Affected ranges

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

Affected versions

1.*
1.4.5+repack1-4
1.4.5+repack1-4build1
1.4.5+repack1-4build2
1.4.5+repack1-4ubuntu0.18.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.4.5+repack1-4ubuntu0.18.04.1",
            "binary_name": "tcpflow"
        },
        {
            "binary_version": "1.4.5+repack1-4ubuntu0.18.04.1",
            "binary_name": "tcpflow-nox"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25061.json"
Ubuntu:20.04:LTS
tcpflow

Package

Name
tcpflow
Purl
pkg:deb/ubuntu/tcpflow@1.5.2+repack1-1build2?arch=source&distro=focal

Affected ranges

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

Affected versions

1.*
1.5.2+repack1-1build1
1.5.2+repack1-1build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.5.2+repack1-1build2",
            "binary_name": "tcpflow"
        },
        {
            "binary_version": "1.5.2+repack1-1build2",
            "binary_name": "tcpflow-nox"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25061.json"
Ubuntu:22.04:LTS
tcpflow

Package

Name
tcpflow
Purl
pkg:deb/ubuntu/tcpflow@1.6.1-2build1?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.6.1-1
1.6.1-2
1.6.1-2build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.6.1-2build1",
            "binary_name": "tcpflow"
        },
        {
            "binary_version": "1.6.1-2build1",
            "binary_name": "tcpflow-nox"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25061.json"
Ubuntu:24.04:LTS
tcpflow

Package

Name
tcpflow
Purl
pkg:deb/ubuntu/tcpflow@1.6.1-3build2?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.6.1-3
1.6.1-3build1
1.6.1-3build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.6.1-3build2",
            "binary_name": "tcpflow"
        },
        {
            "binary_version": "1.6.1-3build2",
            "binary_name": "tcpflow-nox"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25061.json"
Ubuntu:25.10
tcpflow

Package

Name
tcpflow
Purl
pkg:deb/ubuntu/tcpflow@1.6.1-3build2?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*
1.6.1-3build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.6.1-3build2",
            "binary_name": "tcpflow"
        },
        {
            "binary_version": "1.6.1-3build2",
            "binary_name": "tcpflow-nox"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25061.json"
Ubuntu:Pro:14.04:LTS
tcpflow

Package

Name
tcpflow
Purl
pkg:deb/ubuntu/tcpflow@1.4.4+repack1-2ubuntu0.1~esm1?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

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

Affected versions

1.*
1.3.0+dfsg-2
1.4.3+repack1-1
1.4.4+repack1-1
1.4.4+repack1-2
1.4.4+repack1-2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.4.4+repack1-2ubuntu0.1~esm1",
            "binary_name": "tcpflow"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25061.json"