USN-5260-1

Orange Tsai discovered that the Samba vfs_fruit module incorrectly handled certain memory operations. A remote attacker could use this issue to cause Samba to crash, resulting in a denial of service, or possibly execute arbitrary code as root. (CVE-2021-44142)

Michael Hanselmann discovered that Samba incorrectly created directories. In certain configurations, a remote attacker could possibly create a directory on the server outside of the shared directory. (CVE-2021-43566)

Kees van Vloten discovered that Samba incorrectly handled certain aliased SPN checks. A remote attacker could possibly use this issue to impersonate services. (CVE-2022-0336)

References

Affected packages

Ubuntu:20.04:LTS / samba

Package

Name: samba
Purl: pkg:deb/ubuntu/samba@2:4.13.17~dfsg-0ubuntu0.21.04.1?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2:4.13.17~dfsg-0ubuntu0.21.04.1

Affected versions

2:4.*

2:4.10.7+dfsg-0ubuntu2

2:4.10.7+dfsg-0ubuntu3

2:4.11.1+dfsg-3ubuntu1

2:4.11.1+dfsg-3ubuntu2

2:4.11.1+dfsg-3ubuntu4

2:4.11.5+dfsg-1ubuntu1

2:4.11.5+dfsg-1ubuntu2

2:4.11.6+dfsg-0ubuntu1

2:4.11.6+dfsg-0ubuntu1.1

2:4.11.6+dfsg-0ubuntu1.2

2:4.11.6+dfsg-0ubuntu1.3

2:4.11.6+dfsg-0ubuntu1.4

2:4.11.6+dfsg-0ubuntu1.5

2:4.11.6+dfsg-0ubuntu1.6

2:4.11.6+dfsg-0ubuntu1.8

2:4.11.6+dfsg-0ubuntu1.9

2:4.11.6+dfsg-0ubuntu1.10

2:4.13.14+dfsg-0ubuntu0.20.04.1

2:4.13.14+dfsg-0ubuntu0.20.04.2

2:4.13.14+dfsg-0ubuntu0.20.04.3

2:4.13.14+dfsg-0ubuntu0.20.04.4

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "ctdb"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "libnss-winbind"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "libpam-winbind"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "libsmbclient"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "libsmbclient-dev"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "libwbclient-dev"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "libwbclient0"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "python3-samba"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "registry-tools"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "samba"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "samba-common"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "samba-common-bin"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "samba-dev"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "samba-dsdb-modules"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "samba-libs"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "samba-testsuite"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "samba-vfs-modules"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "smbclient"
        },
        {
            "binary_version": "2:4.13.17~dfsg-0ubuntu0.21.04.1",
            "binary_name": "winbind"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "id": "CVE-2021-43566",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2021-44142",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "high",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2022-0336",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}