Multiple vulnerabilities have been discovered in Samba, a SMB/CIFS file, print, and login server for Unix.

CVE-2020-1472

Unauthenticated domain controller compromise by subverting Netlogon cryptography. This vulnerability includes both ZeroLogon and non-ZeroLogon variations.

CVE-2020-10704

An unauthorized user can trigger a denial of service via a stack overflow in the AD DC LDAP server.

CVE-2020-10730

NULL pointer de-reference and use-after-free in Samba AD DC LDAP Server with ASQ, VLV and paged_results.

CVE-2020-10745

Denial of service resulting from abuse of compression of replies to NetBIOS over TCP/IP name resolution and DNS packets causing excessive CPU load on the Samba AD DC.

CVE-2020-10760

The use of the paged_results or VLV controls against the Global Catalog LDAP server on the AD DC will cause a use-after-free.

CVE-2020-14303

Denial of service resulting from CPU spin and and inability to process further requests once the AD DC NBT server receives an empty (zero-length) UDP packet to port 137.

CVE-2020-14318

Missing handle permissions check in ChangeNotify

CVE-2020-14323

Unprivileged user can crash winbind via invalid lookupsids DoS

CVE-2020-14383

DNS server crash via invalid records resulting from uninitialized variables

For Debian 9 stretch, these problems have been fixed in version 2:4.5.16+dfsg-1+deb9u3.

We recommend that you upgrade your samba packages.

For the detailed security status of samba please refer to its security tracker page at: https://security-tracker.debian.org/tracker/samba

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Detections

Analytics

Debian DLA-2463-1 : samba security update

medium Nessus Plugin ID 143186

Version 1.10

Version 1.9

Version 1.8

Version 1.6

Version 1.10 Feb 8, 2024, 5:28 PM CVSS metrics ("CVSSv3 score" set to 5.5. "CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N") CVSSv3 severity (based on None, severity decreased from "High" to "Medium") Plugin Feed: 202402081728
Version 1.9 Feb 8, 2024, 2:20 PM CVSS metrics ("CVSSv3 score" set to 5.5) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N") CVSSv3 severity (based on None, severity decreased from "High" to "Medium") Plugin Feed: 202402081420
Version 1.8 May 24, 2023, 12:08 AM CEA reference Plugin Feed: 202305240008
Version 1.6 Dec 6, 2022, 2:54 AM Reference Plugin Feed: 202212060254