# CVE-2020-25718: samba: A flaw was found in the way samba, as an Active Directory Domain Controller, is able to support an RODC (read-only do... CVE-2020-25718 is fixed in 16 products on 1 platform, first by ctdb 2:4.13.14+dfsg-0ubuntu0.20.04.1, released November 8, 2021. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2020-25718 - Priority: High - CVSS: 8.8 (high) - EPSS: 0.0170 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Nov 8, 2021 ## Description A flaw was found in the way samba, as an Active Directory Domain Controller, is able to support an RODC (read-only domain controller). This would allow an RODC to print administrator tickets. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | ctdb Ubuntu 20.04 LTS (focal) | 2:4.13.14+dfsg-0ubuntu0.20.04.1 | [ctdb 2:4.13.14+dfsg-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ctdb-2-4.13.14-dfsg-0ubuntu0.20.04.1.md) | Nov 8, 2021 | | Linux | ctdb Ubuntu 22.04.1 LTS (jammy) | 2:4.13.14+dfsg-0ubuntu1 | [ctdb 2:4.13.14+dfsg-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ctdb-2-4.13.14-dfsg-0ubuntu1.md) | Nov 8, 2021 | | Linux | libnss-winbind Ubuntu 20.04 LTS (focal) | 2:4.13.14+dfsg-0ubuntu0.20.04.1 | [libnss-winbind 2:4.13.14+dfsg-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libnss-winbind-2-4.13.14-dfsg-0ubuntu0.20.04.1.md) | Nov 8, 2021 | | Linux | libnss-winbind Ubuntu 22.04.1 LTS (jammy) | 2:4.13.14+dfsg-0ubuntu1 | [libnss-winbind 2:4.13.14+dfsg-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libnss-winbind-2-4.13.14-dfsg-0ubuntu1.md) | Nov 8, 2021 | | Linux | libpam-winbind Ubuntu 20.04 LTS (focal) | 2:4.13.14+dfsg-0ubuntu0.20.04.1 | [libpam-winbind 2:4.13.14+dfsg-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpam-winbind-2-4.13.14-dfsg-0ubuntu0.20.04.1.md) | Nov 8, 2021 | | Linux | libpam-winbind Ubuntu 22.04.1 LTS (jammy) | 2:4.13.14+dfsg-0ubuntu1 | [libpam-winbind 2:4.13.14+dfsg-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libpam-winbind-2-4.13.14-dfsg-0ubuntu1.md) | Nov 8, 2021 | | Linux | libsmbclient Ubuntu 20.04 LTS (focal) | 2:4.13.14+dfsg-0ubuntu0.20.04.1 | [libsmbclient 2:4.13.14+dfsg-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libsmbclient-2-4.13.14-dfsg-0ubuntu0.20.04.1.md) | Nov 8, 2021 | | Linux | libsmbclient Ubuntu 22.04.1 LTS (jammy) | 2:4.13.14+dfsg-0ubuntu1 | [libsmbclient 2:4.13.14+dfsg-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libsmbclient-2-4.13.14-dfsg-0ubuntu1.md) | Nov 8, 2021 | | Linux | libwbclient0 Ubuntu 20.04 LTS (focal) | 2:4.13.14+dfsg-0ubuntu0.20.04.1 | [libwbclient0 2:4.13.14+dfsg-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libwbclient0-2-4.13.14-dfsg-0ubuntu0.20.04.1.md) | Nov 8, 2021 | | Linux | libwbclient0 Ubuntu 22.04.1 LTS (jammy) | 2:4.13.14+dfsg-0ubuntu1 | [libwbclient0 2:4.13.14+dfsg-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libwbclient0-2-4.13.14-dfsg-0ubuntu1.md) | Nov 8, 2021 | | Linux | python3-samba Ubuntu 20.04 LTS (focal) | 2:4.13.14+dfsg-0ubuntu0.20.04.1 | [python3-samba 2:4.13.14+dfsg-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-python3-samba-2-4.13.14-dfsg-0ubuntu0.20.04.1.md) | Nov 8, 2021 | | Linux | python3-samba Ubuntu 22.04.1 LTS (jammy) | 2:4.13.14+dfsg-0ubuntu1 | [python3-samba 2:4.13.14+dfsg-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-python3-samba-2-4.13.14-dfsg-0ubuntu1.md) | Nov 8, 2021 | | Linux | registry-tools Ubuntu 20.04 LTS (focal) | 2:4.13.14+dfsg-0ubuntu0.20.04.1 | [registry-tools 2:4.13.14+dfsg-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-registry-tools-2-4.13.14-dfsg-0ubuntu0.20.04.1.md) | Nov 8, 2021 | | Linux | registry-tools Ubuntu 22.04.1 LTS (jammy) | 2:4.13.14+dfsg-0ubuntu1 | [registry-tools 2:4.13.14+dfsg-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-registry-tools-2-4.13.14-dfsg-0ubuntu1.md) | Nov 8, 2021 | | Linux | samba Debian 12.15 (bookworm) | 2:4.13.14+dfsg-1 | [DEBIAN-CVE-2020-25718](https://patchblox.com/security/data/fix/linux/debian-cve-2020-25718.md) | Feb 18, 2022 | | Linux | samba Debian 13.5 (trixie) | 2:4.13.14+dfsg-1 | [DEBIAN-CVE-2020-25718](https://patchblox.com/security/data/fix/linux/debian-cve-2020-25718.md) | Feb 18, 2022 | | Linux | samba Debian 14 | 2:4.13.14+dfsg-1 | [DEBIAN-CVE-2020-25718](https://patchblox.com/security/data/fix/linux/debian-cve-2020-25718.md) | Feb 18, 2022 | | Linux | samba Ubuntu 20.04 LTS (focal) | 2:4.13.14+dfsg-0ubuntu0.20.04.1 | [samba 2:4.13.14+dfsg-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-samba-2-4.13.14-dfsg-0ubuntu0.20.04.1.md) | Nov 8, 2021 | | Linux | samba Ubuntu 22.04.1 LTS (jammy) | 2:4.13.14+dfsg-0ubuntu1 | [samba 2:4.13.14+dfsg-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-samba-2-4.13.14-dfsg-0ubuntu1.md) | Nov 8, 2021 | | Linux | samba-common Ubuntu 20.04 LTS (focal) | 2:4.13.14+dfsg-0ubuntu0.20.04.1 | [samba-common 2:4.13.14+dfsg-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-samba-common-2-4.13.14-dfsg-0ubuntu0.20.04.1.md) | Nov 8, 2021 | | Linux | samba-common Ubuntu 22.04.1 LTS (jammy) | 2:4.13.14+dfsg-0ubuntu1 | [samba-common 2:4.13.14+dfsg-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-samba-common-2-4.13.14-dfsg-0ubuntu1.md) | Nov 8, 2021 | | Linux | samba-common-bin Ubuntu 20.04 LTS (focal) | 2:4.13.14+dfsg-0ubuntu0.20.04.1 | [samba-common-bin 2:4.13.14+dfsg-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-samba-common-bin-2-4.13.14-dfsg-0ubuntu0.20.04.1.md) | Nov 8, 2021 | | Linux | samba-common-bin Ubuntu 22.04.1 LTS (jammy) | 2:4.13.14+dfsg-0ubuntu1 | [samba-common-bin 2:4.13.14+dfsg-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-samba-common-bin-2-4.13.14-dfsg-0ubuntu1.md) | Nov 8, 2021 | | Linux | samba-dsdb-modules Ubuntu 20.04 LTS (focal) | 2:4.13.14+dfsg-0ubuntu0.20.04.1 | [samba-dsdb-modules 2:4.13.14+dfsg-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-samba-dsdb-modules-2-4.13.14-dfsg-0ubuntu0.20.04.1.md) | Nov 8, 2021 | | Linux | samba-dsdb-modules Ubuntu 22.04.1 LTS (jammy) | 2:4.13.14+dfsg-0ubuntu1 | [samba-dsdb-modules 2:4.13.14+dfsg-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-samba-dsdb-modules-2-4.13.14-dfsg-0ubuntu1.md) | Nov 8, 2021 | | Linux | samba-libs Ubuntu 20.04 LTS (focal) | 2:4.13.14+dfsg-0ubuntu0.20.04.1 | [samba-libs 2:4.13.14+dfsg-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-samba-libs-2-4.13.14-dfsg-0ubuntu0.20.04.1.md) | Nov 8, 2021 | | Linux | samba-libs Ubuntu 22.04.1 LTS (jammy) | 2:4.13.14+dfsg-0ubuntu1 | [samba-libs 2:4.13.14+dfsg-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-samba-libs-2-4.13.14-dfsg-0ubuntu1.md) | Nov 8, 2021 | | Linux | samba-testsuite Ubuntu 20.04 LTS (focal) | 2:4.13.14+dfsg-0ubuntu0.20.04.1 | [samba-testsuite 2:4.13.14+dfsg-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-samba-testsuite-2-4.13.14-dfsg-0ubuntu0.20.04.1.md) | Nov 8, 2021 | | Linux | samba-testsuite Ubuntu 22.04.1 LTS (jammy) | 2:4.13.14+dfsg-0ubuntu1 | [samba-testsuite 2:4.13.14+dfsg-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-samba-testsuite-2-4.13.14-dfsg-0ubuntu1.md) | Nov 8, 2021 | | Linux | samba-vfs-modules Ubuntu 20.04 LTS (focal) | 2:4.13.14+dfsg-0ubuntu0.20.04.1 | [samba-vfs-modules 2:4.13.14+dfsg-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-samba-vfs-modules-2-4.13.14-dfsg-0ubuntu0.20.04.1.md) | Nov 8, 2021 | | Linux | samba-vfs-modules Ubuntu 22.04.1 LTS (jammy) | 2:4.13.14+dfsg-0ubuntu1 | [samba-vfs-modules 2:4.13.14+dfsg-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-samba-vfs-modules-2-4.13.14-dfsg-0ubuntu1.md) | Nov 8, 2021 | | Linux | smbclient Ubuntu 20.04 LTS (focal) | 2:4.13.14+dfsg-0ubuntu0.20.04.1 | [smbclient 2:4.13.14+dfsg-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-smbclient-2-4.13.14-dfsg-0ubuntu0.20.04.1.md) | Nov 8, 2021 | | Linux | smbclient Ubuntu 22.04.1 LTS (jammy) | 2:4.13.14+dfsg-0ubuntu1 | [smbclient 2:4.13.14+dfsg-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-smbclient-2-4.13.14-dfsg-0ubuntu1.md) | Nov 8, 2021 | | Linux | winbind Ubuntu 20.04 LTS (focal) | 2:4.13.14+dfsg-0ubuntu0.20.04.1 | [winbind 2:4.13.14+dfsg-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-winbind-2-4.13.14-dfsg-0ubuntu0.20.04.1.md) | Nov 8, 2021 | | Linux | winbind Ubuntu 22.04.1 LTS (jammy) | 2:4.13.14+dfsg-0ubuntu1 | [winbind 2:4.13.14+dfsg-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-winbind-2-4.13.14-dfsg-0ubuntu1.md) | Nov 8, 2021 | --- Data as of 2026-11-08T13:06:02Z UTC. 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