Description
realmd allows remote attackers to inject arbitrary configurations in to sssd.conf and smb.conf via a newline character in an LDAP response.
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 | realmd | 0.16.0-1 | — |
| Debian 13 | realmd | 0.16.0-1 | — |
| Debian 12 | realmd | 0.16.0-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | realmd | 0.15.0-1ubuntu0.1+esm1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | realmd +1 | 0.16.1-5.el7 | RHSA-2015:2184 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | realmd | No fix yet | — |
| Azure Linux 2 (CBL-Mariner) | realmd | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | realmd +1 | 0.16.1-5.el7 | ELSA-2015-2184 |
Advisories 2
- RHSA-2015:2184 Red Hat Security Advisory: realmd security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- ELSA-2015-2184 Moderate: realmd security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 24, 2015
References
- FEDORA-2015-6124 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- FEDORA-2015-6387 vendor-advisory
- 73352 vdb-entry
- https://bugs.freedesktop.org/show_bug.cgi?id=89207