CVE-2020-25721
Published: 09 November 2021
Kerberos acceptors need easy access to stable AD identifiers (eg objectSid). Samba as an AD DC now provides a way for Linux applications to obtain a reliable SID (and samAccountName) in issued tickets.
Priority
Medium
Status
| Package | Release | Status |
|---|---|---|
|
samba Launchpad, Ubuntu, Debian |
Upstream |
Released
(4.13.14)
|
| Ubuntu 21.10 (Impish Indri) |
Released
(2:4.13.14+dfsg-0ubuntu0.21.10.1)
|
|
| Ubuntu 21.04 (Hirsute Hippo) |
Released
(2:4.13.14+dfsg-0ubuntu0.21.04.1)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Released
(2:4.13.14+dfsg-0ubuntu0.20.04.1)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Ignored
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Needs triage
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Needs triage
|
Notes
| Author | Note |
|---|---|
| mdeslaur | Fixing this in Ubuntu 18.04 LTS would require substantial code backports. We will not be fixing this issue in Ubuntu 18.04 LTS. In environments where this is of concern, we recommend updating to a more recent Ubuntu version. |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25721
- https://www.samba.org/samba/security/CVE-2020-25721.html
- https://www.samba.org/samba/history/samba-4.13.14.html
- https://ubuntu.com/security/notices/USN-5142-1
- NVD
- Launchpad
- Debian