UBUNTU-CVE-2026-11793

See a problem?
Please try reporting it to the source first.

Source

https://ubuntu.com/security/CVE-2026-11793

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-11793.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-11793

Upstream

CVE-2026-11793

Published

2026-06-09T14:16:00Z

Modified

2026-06-12T09:04:04.658898440Z

Severity

4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

A stack buffer overflow flaw was found in 389 Directory Server. The checkPrefix() function in pw.c copies an attacker-controlled algorithm ID into a 256-byte stack buffer without bounds checking when parsing reversible-encrypted attribute values. An attacker with Directory Manager privileges can crash the LDAP server by storing a crafted credential with an oversized algorithm ID. FORTIFY_SOURCE mitigates this to denial of service only.

References

Affected packages

Ubuntu:22.04:LTS

389-ds-base

Package

Name: 389-ds-base
Purl: pkg:deb/ubuntu/389-ds-base?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.4.4.11-2build1

1.4.4.11-2build2

1.4.4.17-1

2.*

2.0.11-2

2.0.14-1

2.0.15-1

2.0.15-1ubuntu2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "389-ds",
            "binary_version": "2.0.15-1ubuntu2"
        },
        {
            "binary_name": "389-ds-base",
            "binary_version": "2.0.15-1ubuntu2"
        },
        {
            "binary_name": "389-ds-base-libs",
            "binary_version": "2.0.15-1ubuntu2"
        },
        {
            "binary_name": "cockpit-389-ds",
            "binary_version": "2.0.15-1ubuntu2"
        },
        {
            "binary_name": "python3-lib389",
            "binary_version": "2.0.15-1ubuntu2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-11793.json"

Ubuntu:24.04:LTS

389-ds-base

Package

Name: 389-ds-base
Purl: pkg:deb/ubuntu/389-ds-base?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.3.4+dfsg1-1

2.4.4+dfsg1-1ubuntu1

2.4.4+dfsg1-1ubuntu4

2.4.4+dfsg1-3

2.4.5+dfsg1-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "389-ds",
            "binary_version": "2.4.5+dfsg1-1"
        },
        {
            "binary_name": "389-ds-base",
            "binary_version": "2.4.5+dfsg1-1"
        },
        {
            "binary_name": "389-ds-base-libs",
            "binary_version": "2.4.5+dfsg1-1"
        },
        {
            "binary_name": "cockpit-389-ds",
            "binary_version": "2.4.5+dfsg1-1"
        },
        {
            "binary_name": "python3-lib389",
            "binary_version": "2.4.5+dfsg1-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-11793.json"

Ubuntu:25.10

389-ds-base

Package

Name: 389-ds-base
Purl: pkg:deb/ubuntu/389-ds-base?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.1.2+dfsg1-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "389-ds",
            "binary_version": "3.1.2+dfsg1-1"
        },
        {
            "binary_name": "389-ds-base",
            "binary_version": "3.1.2+dfsg1-1"
        },
        {
            "binary_name": "389-ds-base-libs",
            "binary_version": "3.1.2+dfsg1-1"
        },
        {
            "binary_name": "cockpit-389-ds",
            "binary_version": "3.1.2+dfsg1-1"
        },
        {
            "binary_name": "python3-lib389",
            "binary_version": "3.1.2+dfsg1-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-11793.json"

Ubuntu:26.04:LTS

389-ds-base

Package

Name: 389-ds-base
Purl: pkg:deb/ubuntu/389-ds-base?arch=source&distro=resolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.1.2+dfsg1-1

3.1.2+vendor1-2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "389-ds",
            "binary_version": "3.1.2+vendor1-2"
        },
        {
            "binary_name": "389-ds-base",
            "binary_version": "3.1.2+vendor1-2"
        },
        {
            "binary_name": "389-ds-base-libs",
            "binary_version": "3.1.2+vendor1-2"
        },
        {
            "binary_name": "cockpit-389-ds",
            "binary_version": "3.1.2+vendor1-2"
        },
        {
            "binary_name": "python3-lib389",
            "binary_version": "3.1.2+vendor1-2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-11793.json"

Ubuntu:Pro:16.04:LTS

389-ds-base

Package

Name: 389-ds-base
Purl: pkg:deb/ubuntu/389-ds-base?arch=source&distro=esm-apps%2Fxenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.3.12-1build1

1.3.3.13-1

1.3.4.5-2

1.3.4.8-1

1.3.4.8-3

1.3.4.8-3ubuntu1

1.3.4.8-4

1.3.4.9-1

1.3.4.9-1ubuntu0.1~esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "389-ds",
            "binary_version": "1.3.4.9-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "389-ds-base",
            "binary_version": "1.3.4.9-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "389-ds-base-libs",
            "binary_version": "1.3.4.9-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-11793.json"

Ubuntu:Pro:18.04:LTS

389-ds-base

Package

Name: 389-ds-base
Purl: pkg:deb/ubuntu/389-ds-base?arch=source&distro=esm-apps%2Fbionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.7.5-1

1.3.7.5-1build1

1.3.7.5-1build2

1.3.7.9-1

1.3.7.10-1

1.3.7.10-1ubuntu1

1.3.7.10-1ubuntu1+esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "389-ds",
            "binary_version": "1.3.7.10-1ubuntu1+esm1"
        },
        {
            "binary_name": "389-ds-base",
            "binary_version": "1.3.7.10-1ubuntu1+esm1"
        },
        {
            "binary_name": "389-ds-base-libs",
            "binary_version": "1.3.7.10-1ubuntu1+esm1"
        },
        {
            "binary_name": "python3-dirsrvtests",
            "binary_version": "1.3.7.10-1ubuntu1+esm1"
        },
        {
            "binary_name": "python3-lib389",
            "binary_version": "1.3.7.10-1ubuntu1+esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-11793.json"

Ubuntu:Pro:20.04:LTS

389-ds-base

Package

Name: 389-ds-base
Purl: pkg:deb/ubuntu/389-ds-base?arch=source&distro=esm-apps%2Ffocal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.4.1.6-4

1.4.1.6-4build1

1.4.2.4-1

1.4.2.4-1build1

1.4.3.2-1

1.4.3.2-1build1

1.4.3.6-2

1.4.3.6-2ubuntu0.1~esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "389-ds",
            "binary_version": "1.4.3.6-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "389-ds-base",
            "binary_version": "1.4.3.6-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "389-ds-base-libs",
            "binary_version": "1.4.3.6-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "cockpit-389-ds",
            "binary_version": "1.4.3.6-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "python3-lib389",
            "binary_version": "1.4.3.6-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-11793.json"