Description
Samba 3.x before 3.6.23, 4.0.x before 4.0.16, and 4.1.x before 4.1.6 does not enforce the password-guessing protection mechanism for all interfaces, which makes it easier for remote attackers to obtain access via brute-force ChangePasswordUser2 (1) SAMR or (2) RAP attempts.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | samba | 2:4.1.6+dfsg-1 | — |
| Debian 13 | samba | 2:4.1.6+dfsg-1 | — |
| Debian 12 | samba | 2:4.1.6+dfsg-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | samba | 2:4.1.3+dfsg-2ubuntu4 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | samba +11 | 3.6.9-168.el6_5 | RHSA-2014:0330 |
| RHEL 6 | samba4 +13 | 4.0.0-61.el6_5.rc4 | RHSA-2014:0383 |
| RHEL 5 | samba3x +7 | 3.6.6-0.139.el5_10 | RHSA-2014:0330 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | samba | 4.5.0-1.1 | openSUSE-SU-2024:10069-1 |
Advisories 3
- RHSA-2014:0383 Red Hat Security Advisory: samba4 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2014:0330 Red Hat Security Advisory: samba and samba3x security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- openSUSE-SU-2024:10069-1 ctdb-4.5.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- http://www.samba.org/samba/history/samba-4.1.6.html
- FEDORA-2014-9132 vendor-advisory
- https://bugzilla.samba.org/show_bug.cgi?id=10245
- http://www.samba.org/samba/security/CVE-2013-4496
- http://advisories.mageia.org/MGASA-2014-0138.html
- http://www.samba.org/samba/history/samba-4.0.16.html
- openSUSE-SU-2014:0405 vendor-advisory
- GLSA-201502-15 vendor-advisory
- FEDORA-2014-7672 vendor-advisory
- MDVSA-2015:082 vendor-advisory
- openSUSE-SU-2016:1106 vendor-advisory
- openSUSE-SU-2014:0404 vendor-advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05115993
- openSUSE-SU-2016:1107 vendor-advisory
- 66336 vdb-entry
- RHSA-2014:0330 vendor-advisory
- USN-2156-1 vendor-advisory
- http://www.samba.org/samba/history/samba-3.6.23.html