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Security Advisory

USN-5993-1: Samba vulnerabilities




Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 22.04


Demi Marie Obenour discovered that the Samba LDAP server incorrectly handled certain confidential attribute values. A remote authenticated attacker could possibly use this issue to obtain certain sensitive information. (CVE-2023-0614) Andrew Bartlett discovered that the Samba AD DC admin tool incorrectly sent passwords in cleartext. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2023-0922) Update Instructions: Run `sudo pro fix USN-5993-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: samba-testsuite – 2:4.15.13+dfsg-0ubuntu0.20.04.2 samba – 2:4.15.13+dfsg-0ubuntu0.20.04.2 registry-tools – 2:4.15.13+dfsg-0ubuntu0.20.04.2 libpam-winbind – 2:4.15.13+dfsg-0ubuntu0.20.04.2 winbind – 2:4.15.13+dfsg-0ubuntu0.20.04.2 smbclient – 2:4.15.13+dfsg-0ubuntu0.20.04.2 libwbclient-dev – 2:4.15.13+dfsg-0ubuntu0.20.04.2 libsmbclient – 2:4.15.13+dfsg-0ubuntu0.20.04.2 python3-samba – 2:4.15.13+dfsg-0ubuntu0.20.04.2 samba-common-bin – 2:4.15.13+dfsg-0ubuntu0.20.04.2 libwbclient0 – 2:4.15.13+dfsg-0ubuntu0.20.04.2 samba-dsdb-modules – 2:4.15.13+dfsg-0ubuntu0.20.04.2 samba-dev – 2:4.15.13+dfsg-0ubuntu0.20.04.2 libsmbclient-dev – 2:4.15.13+dfsg-0ubuntu0.20.04.2 samba-vfs-modules – 2:4.15.13+dfsg-0ubuntu0.20.04.2 samba-common – 2:4.15.13+dfsg-0ubuntu0.20.04.2 ctdb – 2:4.15.13+dfsg-0ubuntu0.20.04.2 samba-libs – 2:4.15.13+dfsg-0ubuntu0.20.04.2 libnss-winbind – 2:4.15.13+dfsg-0ubuntu0.20.04.2 No subscription required

CVEs contained in this USN include: CVE-2023-0614, CVE-2023-0922.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

  • cflinuxfs4
    • All versions prior to 1.3.0


Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:

  • cflinuxfs4
    • Upgrade all versions to 1.3.0 or greater


2023-04-24: Initial vulnerability report published.

Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR