USN-7564-1

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Source
https://ubuntu.com/security/notices/USN-7564-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7564-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-7564-1
Related
Published
2025-06-10T13:30:31.459453Z
Modified
2025-06-10T13:30:31.459453Z
Summary
samba vulnerability
Details

It was discovered that Samba incorrectly handled certain group membership changes when using Kerberos authentication. A remote user could possibly use this issue to continue to access resources after being removed by an administrator.

References

Affected packages

Ubuntu:25.04 / samba

Package

Name
samba
Purl
pkg:deb/ubuntu/samba@2:4.21.4+dfsg-1ubuntu3.1?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:4.21.4+dfsg-1ubuntu3.1

Affected versions

2:4.*

2:4.20.4+dfsg-1ubuntu1
2:4.20.4+dfsg-1ubuntu2
2:4.20.4+dfsg-1ubuntu3
2:4.20.4+dfsg-1ubuntu5
2:4.21.4+dfsg-1ubuntu2
2:4.21.4+dfsg-1ubuntu3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "ctdb"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "ctdb-dbgsym"
        },
        {
            "binary_version": "2:2.10.0+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "ldb-tools"
        },
        {
            "binary_version": "2:2.10.0+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "ldb-tools-dbgsym"
        },
        {
            "binary_version": "2:2.10.0+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libldb-dev"
        },
        {
            "binary_version": "2:2.10.0+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libldb2"
        },
        {
            "binary_version": "2:2.10.0+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libldb2-dbgsym"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libnss-winbind"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libnss-winbind-dbgsym"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libpam-winbind"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libpam-winbind-dbgsym"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libsmbclient-dev"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libsmbclient0"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libsmbclient0-dbgsym"
        },
        {
            "binary_version": "2:2.4.2+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libtalloc-dev"
        },
        {
            "binary_version": "2:2.4.2+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libtalloc2"
        },
        {
            "binary_version": "2:2.4.2+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libtalloc2-dbgsym"
        },
        {
            "binary_version": "2:1.4.12+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libtdb-dev"
        },
        {
            "binary_version": "2:1.4.12+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libtdb1"
        },
        {
            "binary_version": "2:1.4.12+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libtdb1-dbgsym"
        },
        {
            "binary_version": "2:0.16.1+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libtevent-dev"
        },
        {
            "binary_version": "2:0.16.1+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libtevent0t64"
        },
        {
            "binary_version": "2:0.16.1+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libtevent0t64-dbgsym"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libwbclient-dev"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libwbclient0"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "libwbclient0-dbgsym"
        },
        {
            "binary_version": "2:2.10.0+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "python3-ldb"
        },
        {
            "binary_version": "2:2.10.0+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "python3-ldb-dbgsym"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "python3-samba"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "python3-samba-dbgsym"
        },
        {
            "binary_version": "2:2.4.2+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "python3-talloc"
        },
        {
            "binary_version": "2:2.4.2+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "python3-talloc-dbgsym"
        },
        {
            "binary_version": "2:1.4.12+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "python3-tdb"
        },
        {
            "binary_version": "2:1.4.12+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "python3-tdb-dbgsym"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "registry-tools"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "registry-tools-dbgsym"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-ad-dc"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-ad-dc-dbgsym"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-ad-provision"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-common"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-common-bin"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-common-bin-dbgsym"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-dbgsym"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-dev"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-dsdb-modules"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-dsdb-modules-dbgsym"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-libs"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-libs-dbgsym"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-testsuite"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-testsuite-dbgsym"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-vfs-ceph"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-vfs-ceph-dbgsym"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-vfs-glusterfs"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-vfs-glusterfs-dbgsym"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-vfs-modules"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "samba-vfs-modules-extra"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "smbclient"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "smbclient-dbgsym"
        },
        {
            "binary_version": "2:1.4.12+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "tdb-tools"
        },
        {
            "binary_version": "2:1.4.12+samba4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "tdb-tools-dbgsym"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "winbind"
        },
        {
            "binary_version": "2:4.21.4+dfsg-1ubuntu3.1",
            "binary_name": "winbind-dbgsym"
        }
    ]
}