UBUNTU-CVE-2026-54371

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Source
https://ubuntu.com/security/CVE-2026-54371
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54371.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-54371
Upstream
  • CVE-2026-54371
Downstream
Related
Published
2026-06-29T14:16:00Z
Modified
2026-08-31T22:15:26Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
  • 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
  • 8.4 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

attr before version 2.6.0 contains a symlink traversal vulnerability in the getfattr and setfattr utilities that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link during directory hierarchy traversal. Attackers who control a pathname component can redirect getfattr and setfattr operations to arbitrary files by substituting a symlink, leading to local privilege escalation when getfattr or setfattr is invoked by a privileged process over an attacker-controlled path.

References

Affected packages

Ubuntu:22.04:LTS
attr

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:2.5.1-1ubuntu0.1

Affected versions

1:2.*
1:2.4.48-6build2
1:2.5.1-1
1:2.5.1-1build1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "attr",
            "binary_version": "1:2.5.1-1ubuntu0.1"
        },
        {
            "binary_name": "libattr1",
            "binary_version": "1:2.5.1-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54371.json"
Ubuntu:24.04:LTS
attr

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:2.5.2-1ubuntu0.1

Affected versions

1:2.*
1:2.5.1-4
1:2.5.1-5
1:2.5.2-1
1:2.5.2-1build1
1:2.5.2-1build1.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "attr",
            "binary_version": "1:2.5.2-1ubuntu0.1"
        },
        {
            "binary_name": "libattr1",
            "binary_version": "1:2.5.2-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54371.json"
Ubuntu:25.10
attr

Package

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

Affected ranges

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

Affected versions

1:2.*
1:2.5.2-3
1:2.5.2-3build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "attr",
            "binary_version": "1:2.5.2-3build1"
        },
        {
            "binary_name": "libattr1",
            "binary_version": "1:2.5.2-3build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54371.json"
Ubuntu:26.04:LTS
attr

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:2.5.2-4ubuntu0.1

Affected versions

1:2.*
1:2.5.2-3build1
1:2.5.2-3build2
1:2.5.2-4

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "attr",
            "binary_version": "1:2.5.2-4ubuntu0.1"
        },
        {
            "binary_name": "libattr1",
            "binary_version": "1:2.5.2-4ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54371.json"
Ubuntu:Pro:14.04:LTS
attr

Package

Name
attr
Purl
pkg:deb/ubuntu/attr?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:2.4.47-1ubuntu1+esm1

Affected versions

1:2.*
1:2.4.47-1
1:2.4.47-1ubuntu1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "attr",
            "binary_version": "1:2.4.47-1ubuntu1+esm1"
        },
        {
            "binary_name": "libattr1",
            "binary_version": "1:2.4.47-1ubuntu1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54371.json"
Ubuntu:Pro:16.04:LTS
attr

Package

Name
attr
Purl
pkg:deb/ubuntu/attr?arch=source&distro=esm-infra-legacy%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:2.4.47-2ubuntu0.16.04.1~esm1

Affected versions

1:2.*
1:2.4.47-2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "attr",
            "binary_version": "1:2.4.47-2ubuntu0.16.04.1~esm1"
        },
        {
            "binary_name": "libattr1",
            "binary_version": "1:2.4.47-2ubuntu0.16.04.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54371.json"
Ubuntu:Pro:18.04:LTS
attr

Package

Name
attr
Purl
pkg:deb/ubuntu/attr?arch=source&distro=esm-infra%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:2.4.47-2ubuntu0.18.04.1~esm1

Affected versions

1:2.*
1:2.4.47-2build1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "attr",
            "binary_version": "1:2.4.47-2ubuntu0.18.04.1~esm1"
        },
        {
            "binary_name": "libattr1",
            "binary_version": "1:2.4.47-2ubuntu0.18.04.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54371.json"
Ubuntu:Pro:20.04:LTS
attr

Package

Name
attr
Purl
pkg:deb/ubuntu/attr?arch=source&distro=esm-infra%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:2.4.48-5ubuntu0.1~esm1

Affected versions

1:2.*
1:2.4.48-4
1:2.4.48-5

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "attr",
            "binary_version": "1:2.4.48-5ubuntu0.1~esm1"
        },
        {
            "binary_name": "libattr1",
            "binary_version": "1:2.4.48-5ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54371.json"