USN-8496-3

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Source
https://ubuntu.com/security/notices/USN-8496-3
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8496-3.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8496-3
Upstream
Related
Published
2026-07-13T12:33:26Z
Modified
2026-07-13T20:44:42.240191956Z
Summary
cifs-utils vulnerability
Details

USN-8496-1 fixed vulnerabilities in cifs-utils. The update caused a regression and was backed out in USN-8496-2. This update reintroduces the security fix, along with a fix for the regression.

Original advisory details:

It was discovered that cifs-utils incorrectly dropped root privileges before looking up user information. A local attacker could possibly use this issue to execute arbitrary code as the root user.

References

Affected packages

Ubuntu:22.04:LTS / cifs-utils

Package

Name
cifs-utils
Purl
pkg:deb/ubuntu/cifs-utils?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:6.14-1ubuntu0.6

Affected versions

2:6.*
2:6.11-3.1
2:6.14-1
2:6.14-1build1
2:6.14-1ubuntu0.1
2:6.14-1ubuntu0.2
2:6.14-1ubuntu0.3
2:6.14-1ubuntu0.4
2:6.14-1ubuntu0.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cifs-utils",
            "binary_version": "2:6.14-1ubuntu0.6"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8496-3.json"
cves_map 
{
    "ecosystem": "Ubuntu:22.04:LTS",
    "cves": [
        {
            "id": "CVE-2026-12505",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}

Ubuntu:24.04:LTS / cifs-utils

Package

Name
cifs-utils
Purl
pkg:deb/ubuntu/cifs-utils?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:7.0-2ubuntu0.5

Affected versions

2:7.*
2:7.0-2
2:7.0-2build1
2:7.0-2ubuntu0.1
2:7.0-2ubuntu0.2
2:7.0-2ubuntu0.3
2:7.0-2ubuntu0.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cifs-utils",
            "binary_version": "2:7.0-2ubuntu0.5"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8496-3.json"
cves_map 
{
    "ecosystem": "Ubuntu:24.04:LTS",
    "cves": [
        {
            "id": "CVE-2026-12505",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}

Ubuntu:26.04:LTS / cifs-utils

Package

Name
cifs-utils
Purl
pkg:deb/ubuntu/cifs-utils?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:7.4-1ubuntu0.26.04.3

Affected versions

2:7.*
2:7.4-1
2:7.4-1build1
2:7.4-1ubuntu0.26.04.1
2:7.4-1ubuntu0.26.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "cifs-utils",
            "binary_version": "2:7.4-1ubuntu0.26.04.3"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8496-3.json"
cves_map 
{
    "ecosystem": "Ubuntu:26.04:LTS",
    "cves": [
        {
            "id": "CVE-2026-12505",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}