CVE-2020-25719
High
Description
A flaw was found in the way Samba, as an Active Directory Domain Controller, implemented Kerberos name-based authentication. The Samba AD DC, could become confused about the user a ticket represents if it did not strictly require a Kerberos PAC and always use the SIDs found within. The result could include total domain compromise.
SeverityHigh
CVSS7.2
Exploit probability—
Product
Samba
PublishedFeb 18, 2022
First seenFeb 18, 2022
Weakness typeCWE-287Improper authentication
How to fix
Update
- samba samba4.13.14, 4.14.10, 4.15.2 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| samba samba | 4.0.0 ≤ v < 4.13.14, 4.14.0 ≤ v < 4.14.10, 4.15.0 ≤ v < 4.15.2 | 4.13.14, 4.14.10, 4.15.2 |
| debian debian_linux | 9.0, 10.0 | — |
| fedoraproject fedora | 33, 34, 35 | — |
| canonical ubuntu_linux | 20.04, 21.04, 21.10 | — |
| redhat enterprise_linux | 7.0, 8.0 | — |
| redhat enterprise_linux_desktop | 7.0 | — |
| redhat enterprise_linux_eus | 8.2, 8.4 | — |
| redhat enterprise_linux_for_ibm_z_systems | 7.0, 8.0 | — |
| redhat enterprise_linux_for_ibm_z_systems_eus | 8.2, 8.4 | — |
| redhat enterprise_linux_for_power_big_endian | 7.0 | — |
| redhat enterprise_linux_for_power_little_endian | 7.0, 8.0 | — |
| redhat enterprise_linux_for_power_little_endian_eus | 8.2, 8.4 | — |
| redhat enterprise_linux_for_scientific_computing | 7.0 | — |
| redhat enterprise_linux_server_aus | 8.2, 8.4 | — |
| redhat enterprise_linux_server_tus | 8.2, 8.4 | — |
| redhat enterprise_linux_server_update_services_for_sap_solutions | 8.2, 8.4 | — |
| redhat enterprise_linux_workstation | 7.0 | — |
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